ch 3 notes - activity dilate pupils stimulate sweat...

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Neuroanatomy: Structure and Function (Chapter 3: pp. 88-103)
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Learning objectives: Identify: Divisions of the Nervous System Landmarks of the Brain Major functional regions and structures of the brain The Four Lobes The Structures of the Midbrain and Hindbrain
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Divisions of the Nervous System
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CNS and PNS Sensory- Somatic System Autonomic System
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Neurons form tracts and nerves
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The Sensory- Somatic System: Afferent (sensory) & Efferent (motor) pathways
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Produces “fight-or-flight” response: Increased heart rate, constricts vessels, dilates lungs, decrease digestive
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Unformatted text preview: activity, dilate pupils, stimulate sweat secretion Active during resting states: Increases digestion, decreases heart rate, lowers blood pressure The Autonomic System: Lateral (side) Views: Brains of Mammals->More cortical surface area -> The midline view: Note that a “bump” is a gyrus; A “groove” is a sulcus or fissure. Your brain in the head-on view: The darker areas are “gray matter” = cell bodies of neurons The lighter areas are “white matter” = axons of neurons The top down view:...
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