PT 518 Study Guide - Final Guide: Inferior Frontal Gyrus, Frontal Eye Fields, Postcentral Gyrus

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Document Summary

Layers of the cortex, aka lamina: 1&2: outermost layer, receives data, 3&4: middle layer, interprets data, 5&6: outer layer, responds to data. Lobes of the cortex and functions of each: frontal: higher order cognition; decision making and planning, parietal: integration and processing of sensory input, temporal: hearing, learning and memory, occipital: vision. Broadman"s areas: need to know- location, function, input, and output- know the purple words, primary motor cortex (area 4) Input: basal ganglia, cerebellum, sensory areas (via thalamus: location: pre-central gyrus, frontal lobe, output: largest efferent tracts corticospinal and corticobulbar, function: skilled, precise control of distal muscles, especially hand and face, pre-motor cortex (area 6) Input: putamen of bg: location: anterior to primary motor, frontal lobe, superior to pre-motor, output: primary motor and basal ganglia *no descending pathway, function: internally generated movement, learned sequences, motor planning, frontal eye field (area 8)