Hypothalamic nuclei (DIT)

Question 1

Hypothal nuke (Fn & Damage):

Function - Anterior nucleus

Answer 1

Function: Thermoregulation (Cooling)
Damage: Hyperthermia

Question 2

Hypothal nuke (Fn & Damage):

Function - Suprachiasmatic nucleus

Answer 2

Function: Circadian rythm

Question 3

Hypothal nuke (Fn & Damage):

Function - Preopic area

Answer 3

Function: Secretes GnRH

Question 4

Hypothal nuke (Fn & Damage):

Function - Supraoptic nucleus

Answer 4

Function: Secretes Oxytocin, ADH

Question 5

Hypothal nuke (Fn & Damage):

Function - Arcuate nucleus (Tuberal)

Answer 5

Function: Secretes GHRH, Dopamine, Pulsatile GnRH secretion, Regulates apetite

Question 6

Hypothal nuke (Fn & Damage):

Function - Lateral nucleus (Tuberal)

Answer 6

Function: Regulates hunger (Inh by Leptin, Stim by Ghrelin)
Damage: Early satiety –> Anorexia

Question 7

Hypothal nuke (Fn & Damage):

Function - Ventromedial nucleus (Tuberal)

Answer 7

Function: Regulates satiety (Stim by Leptin)
Damage: Inc apetite, obesity, savage behavior

Question 8

Hypothal nuke (Fn & Damage):

Function - Dorsomedial nucleus (Tuberal)

Answer 8

Function: Regulates hunger (Stim –> obesity, savage behavior)

Question 9

Hypothal nuke (Fn & Damage):

Function - Paraventricular nucleus

Answer 9

Function: Secretes Oxytocin, ADH, CRH, TRH, somatostatin

Question 10

Hypothal nuke (Fn & Damage):

Function - Mammary nuclei

Answer 10

Function: Memory
Damage: Amnesia

Question 11

Hypothal nuke (Fn & Damage):

Function - Tuberomammary nucleus

Answer 11

Function: Sole source of histamine pathways in the human brain (control of arousal, learning, memory, sleep and energy balance)