Hypothalamus

Question 1

Nuclei in supraoptic region:

Answer 1

Supraoptic, paraventricular, suprachiasmatic, anterior region

Question 2

Nuclei in tuberal region:

Answer 2

Arcuate, ventromedial, and lateral area

Question 3

Nuclei in mammillary region:

Answer 3

Posterior and mamillary

Question 4

Supraoptic nucelus

Answer 4

Part of supraoptic region

Secretes ADH and oxytocin

Question 5

Paraventricular nucleus

Answer 5

Part of supraoptic region

Secretes ADH, oxytocin, and CRF

Question 6

Suprachiasmatic nucleus

Answer 6

Part of supraoptic region
Regulates circadian rhythms
Receives input from retinal ganglion cell melanopsin.
Inhibits melatonin secretion from pineal gland.

Question 7

Anterior nucleus

Answer 7

Part of supraoptic region

Important for heat dissipation (panting, sweating, vasodilation)

Question 8

Arcuate nucleus

Answer 8

Part of tuberal region

Secretes pituitary releasing hormones (TRH, CRH, GnRH, and GHRH)

Question 9

Ventromedial nucleus

Answer 9

Part of tuberal region

Leptin released by adipocytes binds here to induce satiety

Question 10

Lateral nucleus

Answer 10

Part of tuberal region

Secretes orexin, which increases appetite and alertness

Question 11

Posterior nucleus

Answer 11

Part of mammillary region

Sympathetic heat production (shivering, vasoconstriction, and piloerection)

Question 12

Mammillary nucleus

Answer 12

Part of mammillary region
Memory
Part of limbic system