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CNS (Cerebrum (3 white matter tracts (Commissural (One hemisphere to…
CNS
Cerebrum
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Postcentral gyrus
Primary somatosensory cortex
Skin, muscle, joints, proprioception
Consciously aware of these sensations
Insula
Gustation cortex
General visceral sensations (stretch, discomfort, pain)
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Temporal
Auditory and olfactory cortex
Recognition of objects, words, faces
Language comprehension
Emotional response and memory
Parietal
Receives sensory info and processes it
Awareness of objects, sounds, and body parts
Conscious awareness of general somatic sensation
Frontal
Think, plan, make decisions
Planning and initiating voluntary movement
Memory
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CNS protection
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Subarachnoid space
Filled with CSF, also blood vessels
Diencephalon
Hypothalamus
Main visceral control center
Controls autonomic NS w/help of gray matter in brain stem
Regulates: body temp, hunger and thirst, sleep/wake cycles.
Controls endocrine system and motivational behavior
Involved w/emotion and the formation of memory
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Thalamus
"relay station"
Several nuclei
All conscious info going to cortex travels through (except olfaction)
Amplifies or tones down signals
Brain stem
Pons
Composed of pyramidal motor tracts to spinal cord
-Middle cerebellar peduncle connects cerebellum to cerebral cortex
-Reticular formation nuclei- involved with autonomic behaviors
Medulla oblongata
Reticular formation nuclei involved w/autonomic behaviors (cardiac center, vasomotor center, respiratory center)
Contains the pyramids and their decussation, all formed by the pyramidal tracts
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Cerebellum
(Main regions, superficial to deep= cortex, arbor vitae, deep cerebellar nuclei)
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