Chapter 3 Oct 10.pdf

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Rutgers University
Professor Stephen Killianski

Chapter 3: Neuroanatomy and Neurophysiology (October 10, 2012) 1. The Human Brain 1. Cerebral Cortex: Outer most layer of the brain where higher order cognitive functions occur 1. separates humans from other mammals 2. Separated into the left and right hemispheres 1. connected by the corpus callosum (tiny fibers between two hemispheres where signals between the hemispheres are sent) 2. Gyrus 1. Ridges of cortical tissue 3. Sulcus 1. Crevices or folds in the brain 4. Four Lobes of the Cerebral Cortex: Each lobe has a distinct anatomical boundary 1. Temporal Lobe 1. Perception of sound 2. Occipital Lobe 1. Vision 3. Parietal Lobe 1. Bodily sensation and control of 3-Dimensional space 2. Postcentral Gyrus 1. Sensory region where all bodily sensation occurs 4. Frontal Lobe 1. Higher order cognitive function 1. thinking, planning, the ability to reason logically and rationally 2. Precentral Gyrus 1. main control of body movement 2. Structural Organization: The Principle of Contralaterality 1. Opposite hemisphere in the brain controls the opposite side of the body 1. Left hemisphere -->right side of the body 2. Right hemisphere-->left side of the body 3. Cortical Areas (Broca's and Wernicke's) for Language Processing 1. Located in the left hemi
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