IV3 - d. relays thoughts <-> emotions...

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IV. Diencephalon - thalamus and hypothalamus A. Thalamus - relay station between cerebrum and midbrain 1. medial geniculate n. - auditory 2. lateral geniculate n. - visual 3. ventral posterior n. 4. ventral anterior n. - motor actions 5. ventral lateral n. - motor actions and arousal 6. anterior n. - emotion and memory 7. reticular nucleus - regulates thalamic action B. Hypothalamus - tiny area below thalamus (sella turcica) 1. The MASTER REGULATOR of the body (hormones) 2. supraoptic region - above optic chiasm (crossing) 3. infundibulum - carries hormones to pituitary gland 4. mammillary bodies - olfactory relay 5. Chief functions of Hypothalamus a. regulates most organs through autonomics b. integrates sensory information from organs c. relay between Nervous <-> Endocrine Systems i. antidiuretic hormone - urination ii. oxytocin - uterine contraction/mammary
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Unformatted text preview: d. relays thoughts &lt;-&gt; emotions via autonomics e. rage, aggression, passivity (rat studies) f. temperature control/regulation via autonomics g. feeding/satiety center h. thirst center i. sleep/arousal state with reticular formation j. helps control body rhythms (circadian) V. Cerebellum - posterior to midbrain, inferior to occipital A. Structure 1. transverse fissure- separates from occipital lobe 2. tentorium cerebelli- dura mater around cerebellum 3. anterior/posterior lobes- subconscious motion 4. flocularnodular lobe- balance/equilibrium 5. falx cerebelli- dura mater between hemispheres 6. inf. cereb. peduncles- afferents from medulla 7. mid. cereb. peduncles- afferents from pons 8. sup. cereb. peduncles- efferents to midbrain B. Functions 1. maintains equilibrium and posture 2. fine tunes voluntary movement ordered by cerebrum...
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IV3 - d. relays thoughts &amp;amp;lt;-&amp;amp;gt; emotions...

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