SHS 170 Lecture Notes - Lecture 7: Muscle Tone, Gyrus, Cranial Nerves
9 Dec 2016
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Document Summary
Central nervous system (cns: brain, spinal cord. Peripheral nervous system (pns: spinal nerves, cranial nerves. Human brain: protected by the skull, has two hemispheres going by corpus callosum, subdivisions, cerebrum, brainstem, cerebellum. Monday, september 12, 2016: occipital lobe > vision (primary visual area, limbic lobe > emotions (medial aspects), memory. Cerebrum ( white and grey matter when cut in 1/2: under this is white matter, within each hemisphere: Speech and language centers of the brain. Broca"s area: posterior part of the inferior frontal gyrus, speech motor control and speech production. Wernicke"s area: superior temporal gyrus, language comprehension. Brainstem: composed of three basic structures. Cerebellum (called the small brain: wide range of functions. Coordinated and precise control of motor movements including timing and uidity of speech. Spinal cord > important for movements of heart and stomach. 8 cervical, 12 thoracic, 5 lumbar, 5 sacral, and 1 coccygeal. Peripheral nervous system (pns: 12 pairs of cranial nerves, 31 pairs of spinal nerves.
