Sensory Localization
FIGURE 36.1 Some common patterns of sensory loss. A. Hemisensory loss due to a hemispheric lesion. B. Crossed sensory loss to pain and temperature due to a lateral medullary lesion….
The Autonomic Nervous System
FIGURE 45.1 General arrangement of the autonomic nervous system. The sympathetic components are shown in red, the parasympathetic component in blue. (From Snell R. Clinical Neuroanatomy. 7th ed. Philadelphia: Wolters…
Muscle Volume and Contour
FIGURE 29.1 A patient with amyotrophic lateral sclerosis showing advanced atrophy of the muscles of the hands and shoulders. Involvement of nerve roots, plexus elements, or peripheral nerves leads to…
Overview of the Nervous System
FIGURE 2.1 A. Gross brain. B. T-1 weighted MR image. Approximately matched midline sagittal sections. Sagittal T1-weighted MRI of the brain and upper cervical spinal cord. Labels: 1, septum pellucidum;…
Gross and Microscopic Anatomy of the Cerebral Hemispheres
FIGURE 6.1 Lobes, sulci, and gyri of the lateral aspect of the cerebral hemisphere. The frontal and occipital lobes are finely stippled, the temporal lobe coarsely stippled, and the parietal…
Miscellaneous Neurologic Signs
FIGURE 52.1 Opisthotonos in a patient suffering from tetanus; painting by Sir Charles Bell, 1809. Dr. Bell was a noted artist as well as physician. (see Chapter 16.) Stiffness and…
Brainstem and Multiple Cranial Nerve Syndromes
CN, cranial nerve; CST, corticospinal tract; ICP, inferior cerebellar peduncle; LST, lateral spinothalamic tract; ML, medial lemniscus; PICA, posterior inferior cerebellar artery; SCM, sternocleidomastoid; ST, solitary tract. Wallenberg described the…
The Motor Unit Level
FIGURE 23.1 The motor unit. An alpha motor neuron in the anterior horn gives rise to an axon, which branches and arborizes in the periphery to innervate scattered muscle fibers…
The Spinal Accessory Nerve
FIGURE 19.1 Relationship of the cranial and spinal portions of the accessory nerve to the vagus and glossopharyngeal nerves. The major part of CN XI is the spinal portion (ramus…
Associated Movements
Wartenberg’s Sign Active flexion of the terminal phalanges of the four fingers of a paretic hand about a firm object, or against resistance offered by the examiner’s fingers similarly flexed,…
