Trigeminal (V) Nerve
The trigeminal nerve emerges from the anterolateral aspect of the upper pons. The large sensory root conveys sensation from most of the face and scalp; parts of the auricle; and…
Autonomic Innervation of the Eye
Some of the filaments passing through the superior orbital fissure form the sympathetic root of the ciliary ganglion; their contained fibers pass through it without relaying to become incorporated in…
Trigeminal Nuclei: Afferent and Central Connections
The principal sensory nucleus, which is located in the lateral pons, receives tactile and proprioceptive sensation. It gives off fibers that travel in the trigeminal lemniscus and the uncrossed dorsal…
Otic Ganglion
The pharyngeal reflex or gag reflex is elicited by stimulating the posterior pharyngeal wall and results in bilateral contraction of the pharyngeal muscles and brief elevation of the soft palate….
Centrifugal Auditory Pathways
Centrifugal auditory pathways also include efferent projections to the sensory hair cells of the cochlea and to the muscles of the middle ear. The cochlear efferent fibers originate from a…
Spinal Reflex Pathways
Muscle Stretch Reflex. Parts A and B show some of the connections made by groups Ia and II (not shown) afferent fibers from muscle spindle receptors. These afferent fibers are…
Mandibular Nerve (V3)
Trigeminal ganglionopathy in association with connective tissue disease is likely caused by circulating autoantibodies to ganglion cell bodies. This is particularly seen in scleroderma or Sjögren syndrome. Numbness begins around…
Hypoglossal (XII) Nerve
Related posts: Arteries of Spinal Cord Spinal Reflex Pathways Cervical Spondylosis Distribution of Motor and Sensory Fibers Cell Types of Nervous System Autonomic Nerves in Neck
Afferent Auditory Pathways
The fibers of the ventral cochlear nucleus then project to the superior olive located in the medulla. The fibers then project by way of the lateral lemniscus nuclei and other…
Ophthalmic (V1) and Maxillary (V2) Nerves
Related posts: Arteries of Spinal Cord Spinal Reflex Pathways Cervical Spondylosis Distribution of Motor and Sensory Fibers Cell Types of Nervous System Autonomic Nerves in Neck
