Neuroanatomy and Physiology

Neuroanatomy and Physiology


Surface Anatomy




















































































































































































































































































































































































































































































1. Characterize the lateral cortical surface.


 


G7 p.84:65mm


a. The pre-central sulcus is not_____.


complete


 


b. The middle frontal gyrus connects with the_____gyrus through this_____.


precentral, isthmus


 


c. The central sulcus is separated from the sylvian fissure_____% of the time.


98%


 


d. The tissue separating them is called the_____ _____.


sub-central gyrus


 


e. The inferior and superior parietal lobules are separated by the_____sulcus.


intra-parietal


 


f. The inferior parietal lobule is composed of


 


 


     i. the s_____m_____g_____


supra marginal gyrus (SMG)


 


     ii. and the a_____g_____.


angular gyrus


 


g. The sylvian fissure


 


 


     i. terminates in the_____,


SMG


 


     ii. which is the Brodmann area #_____.


40


 


h. The superior temporal gyrus


 


 


     i. terminates in the_____,


AG


 


     ii. which is the Brodmann area #_____.


39


 


2. Complete the following regarding surface anatomy:


 


G7 p.84:80mm


a. The middle frontal gyrus often connects with the_____ _____.


pre-central gyrus


 


b. The central sulcus joins the sylvian fissure in only _____%.


2%


 


c. A sub-central sulcus is present in_____% of patients.


98%


 


d. The sylvian fissure terminates in the_____ _____.


supra-marginal gyrus


 


e. The superior temporal sulcus is capped by the_____ _____.


angular gyrus


 


3. Matching. Match the following Brodmann cortical areas and their functional significance:


 


G7 p.84:128mm


Functional significance:


 


 


primary motor cortex; Broca area (motor speech); Wernicke area dominant hemisphere; primary auditory area; frontal eye fields; primary somatosensory area; premotor area; primary visual cortex


 


 


Area:


 


 


a. Area 3,1,2



 


b. Area 41,42



 


c. Area 4



 


d. Area 6



 


e. Area 44



 


f. Area 17



 


g. Area 40,39



 


h. Area 8



 


4. Complete the following regarding pars marginalis:


 


G7 p.85:18mm


a. is the terminal part of the_____gyrus


cingulate


 


b. is visible on axial view in >_____%


90%


 


c. is the_____ _____ of the midline paired grooves


most prominent


 


d. extends_____into the hemispheres


deeper


 


e. on axial CT is located just posterior to the line_____(the widest diameter)


9-3


 


f. it curves_____in lower slices


posteriorly


 


g. it curves_____in higher slices


anteriorly


 


5. Complete the following regarding central sulcus:


 


G7 p.85:95mm


a. Is visible in almost_____%


95%


 


b. Does it reach the midline?


no


 


c. Terminates in the_____ _____


para-central lobule


 


6. True or False. The pterion is a region where each of the following bones comes together:


 


G7 p.86:110mm


a. frontal


true


 


b. sphenoid (greater wing)


true


 


c. parietal


true


 


d. temporal


true


 


e. sphenoid (lesser wing)


false


 


7. Matching. Match the bones/sutures that form the listed craniometric points.


 


 


Bone/suture:


 


G7 p.86:125mm


lambdoid suture; occipitomastoid suture; parietomastoid suture; frontal; parietal; temporal; greater wing sphenoid Craniometric point:


 


 


a. asterion


, ,


 


b. pterion


, , ,


 


8. True or False. The name of the junction of lambdoid, occipitomastoid, and parietomastoid sutures is


 


G7 p.86:140mm


a. pterion


false


 


b. asterion


true (Asterion is the junction of lambdoid, occipitomastoid suture, and parietomastoid suture.)


 


c. lambdoid


false


 


d. stephanion


false


 


e. glabella


false


 


f. opisthion


false


 


9. The asterion junction overlies the


 


G7 p.86:160mm


a. _____sinus and the


transverse


 


b. _____sinus.


sigmoid


 


10. External landmark for the sylvian fissure is a line from the lateral canthus to a spot three quarters of the way posterior along an arc running over the convexity in the mid line from the


 


G7 p.87:135mm


a. _____to the


nasion


 


b. _____.


inion


 


11. True or False. In relation to external landmarks the angular gyrus is


 


G7 p.87:145mm


a. one finger’s breadth above the zygomatic arch


false


 


b. just above the pinna


true (The angular gyrus is just above the pinna and important as part of the Wernicke area in the dominant hemisphere.)


 


c. a thumb’s breadth behind the frontal process of the zygomatic bone


false


 


d. at the junction of the lambdoid and sagittal suture


false


 


12. True or False. The motor strip of the motor cortex lies


 


G7 p.87:165mm


a. at the level of the coronal suture


false


 


b. within 2 cm of the coronal suture


false


 


c. 3 to 4 cm posterior to the coronal suture


false


 


d. 4 to 5.4 cm posterior to the coronal suture


true


 


e. 2 cm posterior to the mid-position of the


true inion-nasion arc


true


f. 5 cm straight up from the external


auditory meatus


true


13. True or False. In the non-hydrocephalic adult the lateral ventricles lie


 


G7 p.88:87mm


a. 2 to 3 cm below the outer skull surface


false


 


b. 3 to 4 cm below the outer skull surface


false


 


c. 4 to 5 cm below the outer skull surface


true


 


d. 5 to 6 cm below the outer skull surface


false


 


14. True or False. In the non-hydrocephalic adult the anterior horns extend


 


G7 p.88:108mm


a. 1 to 2 cm anterior to the coronal suture


true


 


b. 2 to 3 cm anterior to the coronal suture


false


 


c. 3 to 4 cm anterior to the coronal suture


false


 


15. True or False. In the non-hydrocephalic adult the anterior horns extend


 


G7 p.88:130mm


a. 1 to 2 cm anterior to the foramen of Monro


false


 


b. 2.5 cm anterior to the foramen of Monro


true


 


c. 3 to 4 cm anterior to the foramen of Monro


false


 


16. True or False. The fastigium is located at


 


G7 p.88:145mm


a. the midpoint of the Twinings line


false


 


b. the floor of the fourth ventricle


false


 


c. the apex of the fourth ventricle within the cerebellum


true (The fastigium is the apex of the fourth ventricle in the cerebellum.)


 


d. 1 to 2 cm anterior to the coronal suture


false


 


17. List the surface landmarks of the following cervical levels.


 


G7 p.89:35mm


Hint: htcc


 


 


a. C3-4_____ _____


hyoid bone


 


b. C4-5_____ _____


thyroid cartilage


 


c. C5-6_____ _____


cricothyroid membrane


 


d. C6-7_____ _____


cricoid cartilage


 


18. Matching. Match the following surface landmarks and cervical levels:


 


G7 p.89:35mm


Surface landmark:


 


 


level of thyroid cartilage; cricoid cartilage; angle of mandible; cricothyroid membrane; carotid tubercle; 1 cm above thyroid cartilage (hyoid bone)


 


 


Cervical level:


 


 


a. C1-2



 


b. C3-4



 


c. C4-5



 


d. C5-6



 


e. C6



 


f. C6-7



 


Cranial Foramina and Their Contents




























































































































































































19. Matching. Match the foramen with contents (choices may be used more than once).


 


G7 p.89:75mm


Contents:


 


 


nothing; middle meningeal artery; VII facial; V2; V3; V1; IX, X XI


 


 


Foramen:


 


 


a. superior orbital fissure



 


b. inferior orbital fissure



 


c. foramen lacerum



 


d. foramen rotundum



 


e. foramen ovale



 


f. foramen spinosum



 


g. stylomastoid foramen



 


h. jugular fora men



 


20. List the cranial nerves and the three branches of one found within the superior orbital fissure (SOF).


 


G7 p.89:85mm


a. o_____


CN III oculomotor


 


b. t_____


IV trochlear


 


c. n_____


nasociliary nerve


 


d. f_____


frontal nerve ophthalmic division: all three branches


 


e. l_____


lacrimal nerve


 


f. a_____


VI abducens nerve


 


21. Additional structures found in the SOF include the


 


G7 p.89:85mm


a. s_____o_____v_____


superior ophthalmic vein


 


b. r_____m_____a_____


recurrent meningeal artery


 


c. which arises from the l_____artery


lacrimal


 


d. o_____b_____ of the m_____m_____a_____


orbital branch of the middle meningeal artery


 


e. s_____p_____ of the ICA


sympathetic plexus of the ICA


 


22. Another name for the transverse crest is_____ _____.


crista falciformis


G7 p.89:182mm


23. Another name for the vertical crest is_____ _____.


Bill’s bar


G7 p.89:187mm


24. Draw and label the nerves in the right porus acusticus.


 


G7 p.90:22mm



a. Bill’s bar


b. transverse crest crista falciformis


c. cranial nerve VII


d. SV—superior vestibular


e. VIII


f. IV—inferior vestibular


 


Fig. 5.1


 


 


25. Label the diagram of the right internal auditory canal.


 


G7 p.90:22mm



a. transverse crest


b. acoustic portion of CN VIII


c. cranial nerve VII in facial canal


d. superior vestibular nerve


e. inferior vestibular nerve


f. Bill’s bar—vertical crest


 


Fig. 5.2


 


 


26. Matching. Match the nerves of the IAC with the areas that they serve.


 


G7 p.90:23mm


Nerves:


 


 


facial n.; nervus intermedius; acoustic portion of VIII n.; superior branch of vestibular n.; inferior branch of vestibular n.


 


 


Areas served:


 


 


a. Facial muscles



 


b. Hair follicles



 


c. Taste buds



 


d. Hearing



 


e. Utricle



 


f. Superior semi-circular canal



 


g. Lateral semi-circular canal



 


h. Saccule



 


Occipitoatlantoaxial-complex Anatomy
















































































27. Matching. Match the ligaments of the occipito-atlantoaxial complex with the statements below.


 


G7 p.91:32mm


Ligaments:


 


 


apical; alar; cruciate; ascending portion; descending portion; transverse portion; posterior longitudinal; tectorial; anterior longitudinal; anterior atlanto occipital


 


 


Statements:


 


 


a. Attaches the odontoid to the foramen magnum



 


b. Attaches the odontoid to the occipital condyle



 


c. Attaches the odontoid to the lateral mass of C1



 


d. Attaches C1 to the clivus and to C2



 


e. Attaches odontoid to clivus



 


f. Attaches C1 to C2



 


g. Traps the odontoid against the atlas



 


h. Extends cephalad to become the tectorial



 


i. The cephalad extension of the PLL



 


j. Extends cephalad to become the anterior atlanto-occipital



 


k. The cephalad extension of the anterior longitudinal



 


28. The most important spinal ligaments in maintaining atlanto-occipital stability are the


 


G7 p.92:95mm


a. _____membrane and the


tectorial


 


b. _____ligaments.


alar


 


Spinal Cord Anatomy




















































































































































































































































































































































29. The very large ascending tract closest to the dentate ligament is the _____.


lateral spinothalamic tract (LST) for pain and temperature from the opposite side of the body


G7 p.93:120mm


30. How is the lateral spinothalamic tract (LST) somatotopically organized?


 


G7 p.93:120mm


a. Cervical is_____.


medial


 


b. Sacral is_____.


lateral


 


31. Which descending motor tract facilitates


 


G7 p.92:158mm


a. extensor tone?


vestibulospinal tract


 


b. flexor tone?


rubrospinal tract


 


32. Matching. Match sensory function and anatomy.


 


G7 p.93:175mm


Sensory function:


 


 


pain and temperature: body; fine touch, deep pressure and proprioception: body; light (crude) touch: body


 


 


Anatomy:


 


 


a. Receptors


 


 


     i. Free nerve ending



 


     ii. Meissner and pacinian corpuscles



 


b. First order neurons


 


 


     i. Small



 


     ii. Heavily myelinated



 


     iii. Finely myelinated



 


     iv. Large



 


c. Soma in dorsal root ganglion



 


d. Enter cord at


 


 


     i. Zone of Lissauer



 


     ii. Ipsilateral posterior columns



 


e. Synapse in


 


 


     i. Rexed layer II



 


     ii. Rexed layer III and IV



 


     iii. Rexed layer VI and VII



 


f. Second order neurons


 


 


     i. Cross obliquely in anterior white commissure



 


     ii. Form the internal arcuate fibers



 


g. And enter the


 


 


     i. Lateral spino-thalamic tract



 


     ii. Medial lemniscus



 


     iii. Anterior spino-thalamic tract



 


h. Second order neurons synapse on the ventral posterior lateral nucleus of the Thalamus



 


i. Third order neurons pass through IC to post-central gyrus



 


33. The major blood supply of the spinal cord vasculature


 


G7 p.95:60mm


a. to the anterior cord arises from


 


 


     i. the vertebral artery and enters at_____


C3


 


     ii. the deep cervical artery and enters at_____


C6


 


     iii. the costo cervical trunk and enters at_____


C8


 


     iv. thoracic levels_____or_____


T4 or T5


 


     v. and from the a_____of A_____


artery of Adamkiewicz


 


b. to the posterior spinal cord arises from:_____to_____radicular branches


10 to 23


 


c. The “watershed zone” is at the_____or_____region


T4 or T5


 


34. List the body area with the appropriate root.


 


G7 p.95:70mm


a. Nipple, root:_____


T4


 


b. Umbilicus, root:_____


T10


 


c. Inguinal crease, root:_____


T12


 


d. Anterior thigh, root:_____


L2-L3


 


e. Posterior thigh, root:_____


S1


 


f. Lateral calf, root:_____


L5


 


g. Medial calf, root:_____


L4


 


h. Posterior calf, root:_____


S1


 


i. Big toe, root:_____


L5


 


j. Little toe, root:_____


S1


 


k. Sole of foot, root:_____


S1


 


l. Lateral shoulder, root:_____


C5


 


m. Lateral forearm


C6


 


n. Thumb


C6


 


o. Middle finger


C7


 


p. Little finger


C8


 


q. Medial forearm


T1


 


Complete the following regarding upper extremity vs trunk dermatomes. Trunk sensory level is reported at T3 on a trauma patient.


 


G7 p.95:70mm


a. This is a little the clavicle.


below


 


b. You must check the_____dermatomes.


arm


 


c. Dermatomes_____to_____are not represented on the trunk.


C5 to T2


 


36. Characterize spinal cord vasculature. The artery of Adamkiewicz serves the spinal cord from


 


G7 p.96:35mm


a. T_____distally and from the


T8


 


b. _____side in


left


 


c. _____% of the population.


80%


 


37. The artery of Adamkiewicz is also known as


 


G7 p.96:35mm


a. a_____


arteria


 


r_____


radicularis


 


a_____


anterior


 


m_____


magna


 


b. Which side does it arise from?


L 80%, R 20%


 


c. What levels does it arise from 100% inclusive?


T9 and T12 75%


 


 


T9 and L2 85%


 


 


T5 and T8 15%


 


 


T5 and L2 100%


 


d. What is its appearance on angiography?


characterisitc hairpin shape


 


38. An artery that has a hairpin shape on angiography is named the_____.


artery of Adamkiewicz


G7 p.96:52mm


Cerebrovascular Anatomy
























































































































































































































































































































































































































































































































































































































































































































































































39. The artery that feeds a tentorial meningioma is named after


 


G7 p.99:118mm


a. _____.and


Bernasconi


 


b. _____.


Cassinari


 


40. The artery that has a bayonet-type kink is the_____ _____.


ophthalmic artery


G7 p.99:118mm


41. Circle of Willis is intact in _____%.


18%


G7 p.97:55mm


42. Hypoplasia of at least one of the posterior communicating arteries occurs in_____%.


22 to 32%


G7 p.97:55mm


43. Absent or hypoplastic A1 occurs in_____%.


25%


G7 p.97:55mm


44. What are the seven segments of the internal carotid artery?


 


G7 p.98:20mm


Hint: can Peter laugh can Charlie only clap


 


 


a. c_____


cervical


 


b. p_____


petrous


 


c. l_____


lacerum


 


d. c_____


cavernous


 


e. c_____


clinoid


 


f. o_____


ophthalmic


 


g. c_____


communicating


 


What portion of the PCA traverses the ambient cistern?


P2


G7 p.98:95mm


46. What choroidal artery arises from it?


medial posterior choroidal artery


G7 p.98:103mm


47. Which cistern is traversed by the P3 segment of the PCA?


quadrigeminal cistern


G7 p.98:102mm


48. Name the segments of the carotid artery and their main branches.


 


G7 p.99:45mm


a. C1 c_____


cervical-carotid sheath


 


 


IJV × PGSN × vagus posterior medial to external carotid


 


b. C2 p_____


petrous


 


c. C3 l_____


lacerum


 


d. C4 c_____


cavernous


 


     i. m_____t_____


meningohypophyseal trunk


 


     ii. a_____m_____a_____


anterior meningeal artery


 


e. C5 c_____


clinoidal


 


f. C6 o_____


ophthalmic


 


     i. o_____


ophthalmic


 


     ii. s_____h_____


superior hypophyseal


 


     iii. p_____c_____


posterior communicating


 


     iv. a_____ c_____


anterior choroidal


 


g. C7 c_____d_____i_____


communicating divides into


 


     i. A_____


ACA


 


     ii. M_____


MCA


 


49. What are the branches of the meningohypophyseal trunk?


 


G7 p.99:107mm


G7 p.99:100mm


Hint: dit


 


 


a. d_____m_____


dorsal meningeal


 


b. i_____h_____


inferior hypophyseal


 


c. t_____a_____


tentorial artery of Bernasconi and Cassinari


 


50. Complete the following concerning anterior circulation:


 


G7 p.99:125mm


a. Occlusion of which artery results in Sheehan syndrome?


inferior hypophyseal artery


 


b. It serves_____ _____ _____


posterior lobe of pituitary


 


c. It is a branch of the_____artery,


meningohypophyseal


 


d. which is a branch off the_____ _____segment of carotid.


cavernous C4


 


e. Occlusion causes pituitary infarct in_____patients.


postpartum


 


51. The ophthalmic artery


 


G7 p.99:145mm


a. arises from the_____segment of the ICA.


sixth


 


b. Is distal or inside cavernous sinus?


distal 89%, intracavernous 8%


 


c. Has what shape on lateral angiogram?


a bayonet-type kink


 


52. The sixth segment of the carotid artery


 


G7 p.99:150mm


a. is known as the_____


ophthalmic


 


b. begins at the_____dural ring


distal


 


c. ends just proximal to_____-_____


P-comm


 


d. has its branches


 


 


     i. o_____artery and the


ophthalmic


 


     ii. s_____h_____artery


superior hypophyseal


 


53. What vessel supplies the inferior half of the posterior limb of the internal capsule?


anterior choroidal artery


G7 p.100:23mm


54. Complete the following about the anterior choroidal artery:


 


G7 p.100:30mm


a. The anterior choroidal artery serves six sites. (Hint: gogoup)


 


 


     i. g_____p_____


globus pallidus


 


     ii. o_____t_____


optic tract


 


     iii. g_____of i_____c_____


genu of internal capsule


 


     iv. o_____r_____


optic radiations


 


     v. u_____


uncus


 


     vi. p_____l_____


posterior limb of internal capsule


 


b. Occlusion may produce: Hint: 3 H _____,_____,_____ _____


hemiplegia, hemihypesthesia, homonymous hemianopsia


 


c. MRI shows infarct in the_____.


posterior limb of the internal capsule


 


55. What artery enters the supracornual recess of the temporal horn to supply the choroid plexus?


plexal segment of the anterior choroidal artery


G7 p.100:30mm


56. Complete the following regarding P-comm and the anterior choroidal artery (ACH):


 


G7 p.100:35mm


a. They are_____ mm apart.


2


 


b. The origin of the_____-_____ is proximal.


P-comm


 


c. Is the Ach smaller or larger than the P-comm?


smaller


 


d. Which artery has the hump of the plexal point?


Ach


 


57. True or False. The carotid siphon


 


G7 p.100:53mm


a. is only that part of the carotid that passes within the cavernous sinus.


false


 


b. If an aneurysm ruptures on the siphon there is no SAH.


false


 


58. The carotid siphon


 


G7 p.100:53mm


a. begins at the posterior bend of the_____ carotid and


cavernous


 


b. ends at the ICA_____.


bifurcation


 


c. It includes the


 


 


     i. ca_____


cavernous


 


     ii. op_____


ophthalmic


 


     iii. co_____


communicating


 


59. Complete the following about vertebral artery segments:


 


G7 p.102:168mm


a. The first segment enters the_____ foramen transversarium.


sixth


 


b. The second ascends_____ within the foramina transversaria.


veritcally


 


c. The second turns_____as it exits the axis.


laterally


 


d. The third curves_____and_____.


posteriorly and medially


 


e. The fourth pierces the_____.


dura


 


60. The vertebral artery joins the other side at the level of the


 


G7 p.103:20mm


a. _____ _____to form the


lower pons (pontomedullary junction)


 


b. _____ _____.


basilar artery


 


61. The junction of the vertebral arteries is called the_____ _____.


vertebral confluens


G7 p.103:20mm


62. What are the six branches arising from the vertebral artery?


 


G7 p.103:105mm


Hint: A postman puts postcards away.


 


 


a. a_____m_____


anterior meningeal


 


b. p_____m_____


posterior meningeal medullary (bulbar)


 


c. m_____


medullary (bulbar)


 


d. p_____s_____


posterior spinal


 


e. p_____


PICA


 


f. a_____s_____


anterior spinal


 


63. Complete the following statements about the PICA:


 


G7 p.103:120mm


a. PICA arises_____mm distal to the point where VA becomes intradural.


10


 


b. PICA has an extradural origin in_____to_____%.


5 to 8%


 


c. It includes five segments named


 


 


     i. a_____m_____


anterior medullary


 


     ii. l_____m_____


lateral medullary


 


     iii. t_____-m_____has_____loop


tonsillo-medullary, caudal


 


     iv. t_____-v_____has_____loop


telo-velo-tonsillar, cranial (supratonsillar)


 


     v. c_____s_____


cortical segments


 


d. and has three branches named


 


 


     i. c_____


choroidal


 


     ii. t_____-h


tonsillo-hemispheric


 


     iii. i_____v_____


inferior vermian


 


64. The cranial loop on angio of the PICA is the_____artery.


supratonsillar (telo-velo-tonsillar)


G7 p.103:165mm


65. The choroidal point


 


G7 p.103:173mm


a. is the point where the_____artery


choroidal


 


b. arises from the_____artery


supratonsillar


 


c. which is a branch of the_____


PICA


 


d. enters into the_____ _____


fourth ventricle


 


e. to serve the_____ _____


choroid plexus


 


66. The copular point


 


G7 p.103:65mm


a. is the point where the_____ _____artery


inferior vermian


G7 p.103:65mm


b. arises from the_____.


PICA


 


67. Name the three segments of the posterior cerebral artery.


 


G7 p.104:65mm


a. c_____


crural (peduncular) segment (P1)


 


b. a_____


ambient segment (P2)


 


c. q_____


quadrigeminal segment (P3)


 


68. Medial posterior choroidal artery arises from the


 


G7 p.104:84mm


a. _____segment of PCA.


crural


 


b. It is also called_____.


P1


 


69. Lateral posterior choroidal artery arises from the


 


G7 p.104:92mm


a. _____segment of the PCA.


ambient


 


b. It is also called_____.


P2


 


70. The third segment of PCA is named the_____segment.


quadrigeminal


G7 p.104:117mm


71. Name the branches of the external carotid from proximal to distal.


 


G6 p.104:30mm


Hint: salfops m


 


 


a. s_____ _____


superior thyroid


 


b. a_____ _____


ascending pharyngeal


 


c. l_____


lingual


 


d. f_____


facial


 


e. o_____


occipital


 


f. p_____ _____


posterior auricular


 


g. s_____ _____


superficial temporal


 


h. m_____


maxillary


 


72. In relation to ICA, the ECA lies


 


G6 p.79:45mm


a. _____and


anterior


 


b. _____to ICA.


lateral


 


73. Which internal jugular vein is usually dominant?


the right


G7 p.104:140mm


74. Which transverse sinus is usually dominant?


the right


G7 p.104:147mm


75. Which vertebral artery is usually dominant?


the left by 60%


G7 p.102:156mm


76. Name the major contributors to the great cerebral vein of Galen.


 


G7 p.105:25mm


a. p_____c_____v_____


precentral cerebellar vein


 


b. b_____v_____of R_____


basal veins of Rosenthal


 


c. i_____c_____v_____


internal cerebral veins


 


77. The joining of the septal vein and the thalamostriate vein with the internal cerebral vein forms an angiographic landmark called the _____ _____at the foramen of Monro.


venous angle


G7 p.105:35mm


78. True or False. The cavernous sinus is


 


G7 p.105:140mm


a. a large venous space with multiple trabeculations


false


 


b. a plexus of veins


true


 


79. Draw the right and left cavernous sinus coronal view. On your drawing, label the following:


 


G7 p.106:15mm



1. oculomotor (III)


2. trochlear (IV)


3. Parkinson triangle


4. ophthalmic (V1)


5. maxillary (V2)


6. abducent (VI)


7. carotid


 


Fig. 5.3


 


 


80. Name six major contents of the cavernous sinus.


 


G7 p.106:15mm


a. _____


CN III


 


b. _____


CN IV


 


c. _____


CN V1


 


d. _____


CN V2


 


e. _____


CN VI


 


f. _____


internal carotid artery


 


81. Complete the following regarding the cavernous sinus:


 


 


a. Which nerve in the cavernous sinus does not also pass through the superior orbital fissure?


V2 maxillary division of trigeminal


G7 p.106:30mm


b. Which foramen of the skull does that nerve pass through?


foramen rotundum


G7 p.106:30mm


c. Which nerve is not attached to the wall?


VI is not attached to lateral wall (abducens)


G7 p.106:85mm


82. With regard to the cavernous sinus, the triangular space of Parkinson is bounded by what structures?


 


G7 p.106:90mm


a. on its superior border_____


III and IV


 


b. on its inferior border_____


trigeminal V1 andV2


 


83. Complete the following regarding persistent fetal anastomosis:


 


G7 p.107:28mm


a. How many are there?


4


 


b. They result from a failure to_____.


involute


 


c. Name them.


 


 


     i. t_____


trigeminal


 


     ii. o_____


otic


 


     iii. h_____


hypoglossal


 


     iv. p_____


proatlantal


 


84. The most common persistent fetal anastomosis is the_____.


trigeminal


G7 p.107:60mm


85. First to involute in persistent fetal anastomsosis is the_____.


otic


G7 p.107:125mm


Internal Capsule


































































































86. Name the vascular supply for the following components of the internal capsule:


 


G7 p.107:165mm


a. anterior limb


lateral striate branches of MCA


 


b. posterior limb


lateral striate branches of MCA


 


c. ventral posterior limb


anterior choroidal


 


d. genu


direct branches of ICA


 


e. optic radiations


anterior choroidal


 


87. Name four thalamic peduncles and where their radiations go.


 


G7 p.108:75mm


a. a_____, f_____ l_____


anterior, frontal lobe


 


b. s_____, p_____ g_____


superior, postcentral gyrus


 


c. P_____, o_____ P_____ a_____


posterior, occipital parietal areas


 


d. i_____, a_____ a_____


inferior, auditory area


 


88. Draw the internal capsule and label which blood vessel serves which area.


 


G7 p.108:15mm


Hint: MIMA


 


 



Fig. 5.4


89. Matching. Match the area in internal capsule with its function.


 


G7 p.108:20mm


Area in internal capsule:


 


 



Fig. 5.5


 


 


Function:


 


 


1. Movement of face ________


C—genu


 


2. Movement of foot ________


D—posterior limb


 


3. Vision ________


F—lateral geniculate


 


4. Hearing ________


G—medial geniculate


 


Miscellaneous












































90. The Obersteiner-Redlich zone is


 


G7 p.108:130mm


a. also known as the_____ _____ _____.


root entry zone


 


b. It is where the central_____ and peripheral_____transition.


myelin, myelin


 


c. It is the zone where_____tend to grow.


neoplasms


 


d. It is located on CN VIII,_____from the brain stem.


8 to 12 mm


 


91. The dentate ligament


 


G7 p.108:150mm


a. separates_____


dorsal


 


b. from_____roots in the spinal nerves.


ventral


 


92. Which cranial nerve lies dorsal to the dentate ligament?


CN XI spinal accessory


G7 p.108:155mm


Neurophysiology












































































































































































































































































































































































































93. Answer the following concerning the blood-brain barrier (BBB):


 


G7 p.109:60mm


a. What chemical opens the BBB?


mannitol


 


b. What chemical closes the BBB?


steroids


 


c. Which sites have no BBB?


pituitary


G7 p.109:70mm


Hint: pppcta


pineal


 


 


preoptic recess


 


 


choroid plexus


 


 


tuber cinereum


 


 


area postrema


 


d. What pathology injures BBB?


hepatic encephalopathy


 


Hint: histt


infections


 


 


stroke


 


 


trauma


 


 


tumor


 


94. Complete the following statements about cerebral edema:


 


G7 p.109:75mm


a. Cytotoxic


 


 


     i. occurs with h_____ i_____


head injury


 


     ii. occurs with h_____


hematoma


 


     iii. shape is c_____


circular


 


     iv. occurs with C_____


CVA


 


     v. BBB is c_____


closed


 


b. Vasogenic


 


 


     i. shape is_____


V-shaped (like fingers of white matter edema)


 


     ii. occurs with t_____


tumors


 


     iii. occurs with m_____


metastasis


 


     iv. treat with s_____


steroids


 


     v. with contrast it_____ and _____


enhances on CT and MR


 


     vi. BBB is o_____


open


 


95. Matching. Match the type of edema with the characteristics.


 


G7 p.109:80mm


Type of edema:


 


 


cytotoxic edema; vasogenic edema Hint: cytotoxic—early letters of alphabet vasogenic—later letters of alphabet Characteristics:


 


 


a. BBB open



 


b. BBB closed



 


c. Head injury



 


d. Tumor



 


e. Enhances



 


f. Does not enhance



 


g. Not appropriate to use steroids



 


h. Appropriate to use steroids



 


i. Circular shape on MR



 


j. V-shaped finger like extensions on MR



 


k. Occurs with hematoma



 


l. Occurs with CVA



 


96. True or False. Cytotoxic edema has:


 


G7 p.109:89mm


a. a disrupted BBB


false


 


b. expansion of the extracellular space


false


 


c. enhancement when contrast injected


false


 


d. no protein extravasation


true


 


97. Study Sheet.


 


G7 p.109:100mm


a. Cytotoxic:


 


 


b. Closed BBB


 


 


c. Head injury


 


 


d. Hematoma


 


 


e. Circular shape


 


 


f. CVA


 


 


g. Cells swell then shrink


 


 


h. Vasogenic:


 


 


i. BBB


 


 


j. Tumors


 


 


k. Metastasis


 


 


l. Steroids


 


 


m. Protein extravasates


 


 


n. Enhances on CT and MRI


 


 


o. Wide extracellular space


 


 


p. Stable cells


 


 


98. In pituitary embryology, posterior pituitary


 


G7 p.109:110mm


a. derives from the_____evagination


downward


 


b. of_____ _____ cells (neuroectoderm)


neural crest


 


c. from the_____


floor


 


d. of the_____ventricle.


third


 


99. The anterior pituitary


 


G7 p.109:120mm


a. develops from the_____


evagination


 


b. of_____ _____


epithelial ectoderm


 


c. of the_____ _____


oropharynx


 


d. known as_____ _____


Rathke’s pouch


 


100. Complete the following regarding neuroendocrinology.


 


G7 p.109:150mm


a. The pituitary releases_____hormones


8


 


b. from the anterior pituitary gland:_____hormones.


6


 


c. Name them.


 


 


Hint: pcpgtg


 


 


     i. p_____


propriomelanocortin


 


     ii. c_____


corticotropin


 


     iii. p_____


prolactin


 


     iv. g_____ _____


growth hormone


 


     v. t_____


thyrotropin


 


     vi. g_____


gonadotropin


 


d. and from the posterior pituitary


 


 


     i. a_____


antidiuretic


 


     ii. o_____


oxytocin


 


101. The pituitary hormones that are released from the posterior pituitary are synthesized


 


G7 p109:165mm


a. in_____neurons


neurons


 


b. in the_____.


hypothalamus


 


c. Are these cells glands?


no


 


d. The hormones are conveyed by_____


axons


 


e. within the_____ _____


pituitary stalk


 


f. to the_____pituitary gland


posterior


 


g. where they are_____.


released


 


Regional Brain Syndromes
























































































































































































































































































































































































































































































































102. Matching. Match region with deficit.


 


G7 p.112:30mm


Region:


 


 


Pre-frontal lobes; frontal lobe; parietal lobe—dominant; parietal—non dominant; occipital lobe; cerebellum; brain stem; pineal; olfactory groove


 


 


Deficit:


 


 


a. Apathy abulia



 


b. Disorganized thoughts



 


c. Contralateral neglect


or


 


d. Language disorders



 


e. Anosognosia



 


f. Dressing apraxia



 


g. Homonymous hemianopsia



 


h. Truncal ataxia



 


i. Ipsilateral ataxia



 


j. Paralysis of upward gaze



 


k. Poor planning



 


l. Unilateral anosmia



 


103. Frontal eye fields for contra lateral gaze are


 


G7 p.112:55mm


a. located in the_____frontal lobe


posterior


 


b. in Broadmann area_____.


8


 


c. With a destructive lesion there, the patient’s eyes look_____the lesion.


toward Hint: destructive=toward


 


d. With an irritative lesion there, the patient’s eyes look_____ _____ the lesion.


away from Hint: irrigitative=away


 


e. Usually the lesions are_____.


destructive


 


104. True or False. Regarding Foster-Kennedy syndrome:


 


G7 p.114:125mm


a. usually from olfactory groove or medial third sphenoid wing tumor


true


 


b. contralateral anosmia


false (Ipsilateral not contralateral anosmia is part of the classic triad.)


 


c. ipsilateral central scotoma


true


 


d. contralateral papilledema


true


 


e. contralateral optic atrophy


false (ipsilateral optic atrophy)


 


f. usually meningioma


true


 


105. True or False. Regarding Weber syndrome:


 


G7 p.X:X mm


a. Weber syndrome includes CN III palsy with contralateral hemiparesis.


true


 


b. Weber syndrome includes CN VII palsy with contralateral hemiparesis.


false


 


c. Weber syndrome includes CN III palsy with ipsilateral hemiparesis.


false


 


d. Weber syndrome includes CN VI and VII palsy with contralateral hemiparesis.


false


 


e. Weber syndrome includes


 


G7 p.114:105


     i. Cranial nerve III palsy


false


 


     ii. Contralateral hemiparesis


false


 


     iii. Arm hyperkinesis


false


 


     iv. Ataxia


false


 


     v. Intention tremor


false


 


106. True or False. Benedict syndrome is due to disruption of


 


G7 p.114:115mm


a. cerebral peduncle


true


 


b. issuing fibers of CN III


true


 


c. red nucleus


true


 


107. True or False. Millard-Gubler syndrome is due to disruption of


 


G7 p.114:130mm


a. nucleus of VII


true


 


b. nucleus of VI


true


 


c. cortico spinal tract


true


 


108. True or False. Regarding Parinaud syndrome:


 


G7 p.114:135mm


a. Parinaud syndrome includes downgaze palsy.


false


 


b. Parinaud syndrome includes lid retracion.


true


 


c. Parinaud syndrome includes nystagmus retractorius.


true


 


d. When Parinaud syndrome is combined with downgaze palsy it is known as the syndrome of the _____ _____.


sylvian aqueduct


 


109. True or False. The following are contents of the jugular foramen:


 


G7 p.115:70mm


a. transverse sinus


false


 


b. CN IX, X, and XI


true


 


c. CN X, XI, and XII


false


 


d. sigmoid sinus


true


 


e. petrosal sinus


true


 


f. branches from the ascending pharyngeal artery


true


 


g. branches from the occipital artery


true


 


110. Matching. Match the following numbered descriptions with the lettered syndromes. Also indicate the nerves involved and the results of the lesion.


 


G7 p.115:110mm


Description:


 


 


Vernet; Collet-Sicard; Villaret Syndrome:


 


 


a. Which jugular foramen syndrome is most likely due to an intracranial lesion?


involves CN,IX,X,XI taste, vocal cords and SCM (sterno cleido mastoid muscle)


 


b. Extracranial lesion?


above plus XII tongue


 


c. Retropharyngeal lesion?


above plus Horner


 


111. True or False. A jugular foramen syndrome that spares CN IX is


 


G7 p.115:155mm


a. Vernet


false


 


b. Collet-Sicard


false


 


c. Villaret


false


 


d. Tapia


true (Tapia X, XII vocal cords and tongue)


 


112. True or False. The following jugular foramen syndrome also results in a Horner syndrome:


 


G7 p.115:180mm


a. Vernet


false


 


b. Collet-Sicard


false


 


c. Jackson


false


 


d. Villaret


true


 


113. True or False. Gerstmann syndrome includes


 


G7 p.113:70mm


a. agraphia without alexia


true


 


b. left-right confusion


true


 


c. digit agnosia


true


 


d. tactile agnosia


false


 


e. acalculia


true


 


114. True or False. Gerstmann syndrome patients can read.


true


G7 p.113:70mm


115. True or False. Gerstmann syndrome patients can write.


false


G7 p.113:70mm


116. True or False. Cortical sensory syndrome includes


 


G7 p.113:110mm


a. loss of position sense


true


 


b. inability to localize tactile stimuli


true


 


c. astereognosis


true


 


d. loss of pain and temperature sense


false (Pain and temperature as well as vibration sense are preserved.)


 


117. True or False. Anton Babinski syndrome includes


 


G7 p.113:155mm


a. anosognosia


true


 


b. apathy


true


 


c. ipsilateral extinction to double-sided stimulation


false (contralateral extinction to double-sided stimulation)


 


d. dressing apraxia


true


 


118. True or False. Wernicke aphasia includes


 


G7 p.114:27mm


a. fluent aphasia


true


 


b. lesion is in Brodmann areas 41 and 42


false (The lesion is in Brodmann 39 and 40.)


 


c. speech devoid of meaning


true


 


d. normal intonation


true


 


119. True or False. Broca aphasia includes


 


G7 p.114:40mm


a. dysarthria


true


 


b. lesion is in area 44


true


 


c. an “apraxia” of motor sequencing


true


 


d. similar to conduction aphasia


false (Broca is a motor aphasia—faltering dysarthric speech. Conduction aphasia is fluent speech with paraphasias.)


 


120. Alexia without agraphia


 


G7 p.114:78mm


a. means that the patient can_____


write


 


b. but cannot_____.


read


 


c. Surprisingly, such patients can usually do what with numbers?


read and name them


 


d. Lesion is located in the_____lobe.


parietooccipital


 


e. On which side?


dominant (left) side


 


f. Serves to disconnect_____ _____and


angular gyrus


 


g. _____ _____


occipital lobes


 


h. also known as_____ _____ _____.


pure word blindness


 


i. This is contrasted with what syndrome?


Gerstmann


 


j. Where patient can_____


read


 


k. but can’t_____


write


 


l. also known as_____ _____ _____.


agraphia without alexia


 


121. Matching. Match the numbered syndromes with the lettered phrases.


 


G7 p.114:78mm


Syndrome: Gerstmann; Pure word blindness Phase:


 


 


a. alexia without agraphia



 


b. agraphia without alexia



 


c. where patient can’t read



 


d. where patient can’t write



 


Babinski Sign



































































































































122. Fill in the blanks to complete the details of the Babinski reflex.


 


G7 p.116:35mm


Hint: pcrstlpt


 


 


a. lateral_____ stimulation


plantar


 


b. originates as a_____ _____


cutaneous reflex


 


c. and stimulates the_____


receptors


 


d. in the_____dermatome


S1


 


e. that travel via the_____ _____


tibial nerve


 


f. to the spinal cord segments number_____(_____limb)


L4-S2, afferent


 


g. The efferent limb travels via the_____nerve (_____limb)


peroneal, efferent


 


h. to the_____ _____


toe extensors


 


123. Summarize the Babinski sign.


 


G7 p.116:65mm


a. receptor_____


S1 dermatome


 


b. afferent limb_____


tibial nerve


 


c. cord_____


L4-S2


 


d. efferent limb_____


peroneal nerve


 


124. Fill in the blanks to complete the details of eliciting the plantar reflex.


 


G7 p.116:92mm


Stimulate the_____ _____ surface


lateral plantar


 


b. and the_____ _____


transverse arch


 


c. in a_____movement


single


 


d. that lasts_____seconds.


5 to 6


 


e. Response consists of_____of the_____ _____.


extension of the great toe


 


f. _____of the small toes is


Fanning


 


g. _____clinically important.


not


 


125. True or False. The Chaddock maneuver is described as


 


G7 p. 116:108mm


a. scratching the lateral foot


true


 


b. pinching the Achilles tendon


false


 


c. sliding knuckles down shin


false


 


d. momentarily squeezing lower gastrocnemius


false


 


126. Complete the following concerning Hoffman sign:



G7 p.116:128mm


a. H (from Hoffman) is the_____letter of the alphabet.


eighth


 


b. If unilaterally present Hoffman sign indicates a lesion above_____.


C8


 


Bladder Neurophysiology




















































































































































































































































































127. Complete the following concerning bladder physiology:


 


G7 p.116:170mm


a. The primary coordinating center for bladder function is in the


 


 


     i. n_____ l_____ c_____


nucleus locus coeruleus


 


     ii. of the p_____.


pons


 


b. This center coordinates


 


 


     i. b_____ c_____ (d_____) with


bladder contraction (detrusor)


 


     ii. s_____ r_____ (e_____ s_____).


sphincter relaxation (external sphincter)


 


128. Voluntary cortical control


 


G7 p.116:182mm


a. inhibits the p_____ c_____.


pontine center—nucleus locus coeruleus


 


b. It originates in the


 


 


     i. a_____ f_____ l_____


anteromedial frontal lobes


 


     ii. and g_____of the c_____ c_____and


genu of the corpus callosum


 


c. travels via the p_____t_____


pyramidal tract


 


d. to inhibit


 


 


     i. c_____of the


contraction of the


 


     ii. d_____ and contraction


detrusor and contraction


 


     iii. of the e_____ s_____.


external sphincter


 


129. Immaturity, infarct, or cortical lesions cause


 


G7 p.117:17mm


a. inability to s_____


suppress


 


b. the m_____r_____


micturition reflex


 


c. and results in i_____.


incontinence


 


130. The efferents to the bladder


 


G7 p.117:28mm


a. travel in the_____portion


dorsal


 


b. of the_____ _____.


lateral columns


 


131. Parasympathetic control


 


G7 p.117:48mm


a. detrusor_____


contracts


 


b. internal sphincter_____


relaxes


 


c. travels via the p_____ s_____nerves


pelvic splanchnic


 


132. Somatic nerve


 


G7 p.117:48mm


a. external sphincter_____


contracts


 


b. maintains c_____


continence


 


c. travels via p_____ nerve


pudendal


 


133. Sympathetic nerve


 


G7 p.117:48mm


a. provides bladder neck_____and


closure


 


b. travels via the i_____ h_____plexus.


inferior hypogastric


 


134. True or False. The detrusor muscle of the bladder contracts and the internal sphincter relaxes under


 


G7 p.117:53mm


a. PNS stimulation


true (parasympathetic nervous system stimulation)


 


b. somatic nerve stimulation


false


 


c. sympathetic nervous system stimulation


false


 


d. all of the above


false


 


135. True or False. The following can cause detrusor hyperreflexia:


 


G7 p.117:125mm


a. CVA


true


 


b. spinal cord tumor


true


 


c. chronic bladder catheterization


false (Detrusor hyperreflexia can result from interruption of efferents anywhere from cortex to sacral cord.)


 


d. multiple sclerosis


true


 


e. Parkinson disease


true


 


136. True or False. Interruption of the efferents results in


 


G7 p.117:142mm


a. atonic bladder


false—root lesion


 


b. overflow incontinence


false—root lesion


 


c. uncontrollable voiding


true


 


d. reflex bladder empting


true


 


e. voiding triggered by critical volume


true


 


f. produced by myelopathy


true


 


g. produced by head injury


true


 


h. produced by certain drugs


false—detrusor areflexia


 


i. produced by diabetes mellitus


false—automatic neuropathy


 


137. True or False. Patients with multiple sclerosis develop voiding symptoms from demyelination primarily involving the


 


G7 p.118:127mm


a. posterior and lateral columns of lumbar spinal cord


false


 


b. lateral column of cervical spine


false


 


c. posterior column of lumbar spine


false


 


d. lateral column of lumbar spine


false


 


e. posterior and lateral columns of cervical spinal cord


true (posterior and lateral columns of cervical spinal cord)


 


138. True or False. Causes of urinary retention are


 


G7 p.118:145mm


a. urethral stricture


true


 


b. prostatic enlargement


true


 


c. detrusor areflexia


true


 


d. herpes zoster


true


 


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Aug 6, 2016 | Posted by in NEUROSURGERY | Comments Off on Neuroanatomy and Physiology

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