Cerebrum

Cerebrum - o Sensory areas: Primary sensory (directly...

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Cerebrum: Part of the telencephalon 10% of CNS by volume, 50% of CNS neurons Two bilaterally symmetric cerebral hemispheres surrounding the diencephalon Two hemispheres connected by corpus callosum, a thick band of fibers Gyrus (gyri): convolutions; ridge on the cerebral cortex Sulcus (sulci): infoldings; depression/fissure Fissure: groove, natural division, deep furrow, elongated cleft, tear Gray matter: outer layer of the cortex, contains neural cell bodies White matter: inner layer of the cortex, no neural cell bodies, mostly myelinated axon tracts Each hemisphere consists of four lobes: frontal parietal, temporal and occipital Mediates the highest functions: Three functional areas: sensory, motor, and association
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Unformatted text preview: o Sensory areas: Primary sensory (directly posterior to the central sulcus) and gustatory (taste) areas in the parietal lobe Primary visual and visual association in the occipital lobe Primary auditory, auditory association, and primary olfactory areas in temporal lobe o Motor areas: Primary motor (directly anterior to the central sulcus), premotor, motor speech areas in the frontal lobe o Association areas: Concerned with memory, emotions, reasoning, intelligence, and psychic functions Consists of association tracts that connect sensory and motor areas and distributed to all four lobes...
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This note was uploaded on 04/23/2011 for the course BIME 2102 taught by Professor Kim during the Spring '11 term at UVA.

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