CNS 3 - Diencephalon, Brainstem, Cerebellum

Question 1

Components of the diencephlon

Answer 1

• thalamus
• hypothalamus
• posterior pituitary
• pineal

Question 2

Thalamus

Answer 2

• biggest part of the diencephalon
• memory, motor, sensory, relax nucleus
• inputs from cerebral cortex determine which sensations should be conveyed to the cortex - selective attention

Question 3

Hypothalamus

Answer 3

• ANS regulation = BP, HR, digestive motility, respiratory rate, pupil size
• pleasure, fear, rage
• temperature regulation
• appetite
• water intake and thirst
• endocrine control

Question 4

Posterior pituitary

Answer 4

• releases hormones from the hypothalamus

- eg. oxytocin, vasopressin

Question 5

Pineal

Answer 5

• releases melatonin

- sleep, circadian rhythm

Question 6

Anterior thalamus

Answer 6

• links mammillary bodies to cingulate cortex

Question 7

Middle thalamus

Answer 7

• determines balance between basal nuclei and cerebellar output to premotor cortex

Question 8

Posterior thalamus

Answer 8

• vision, hearing

- temperature, pain, touch pressure, proprioception