1
Q
3 hypothalamic nuclei, what are they
A
arcuate nucleusus, lateral hypothalamic area, paraventricular nucleus
2
Q
arcuate nucleus
A
- Directly monitors blood nutrient concentrations
- Responsible for feelings of hunger and initiation of eating
3
Q
Lateral hypothalamic area
A
Responsible for search for food, initiation and stimulation of eating (search for food)
4
Q
Paraventricular nucleus
A
- Junction between neurotransmitters
- initiation and inhibition of eating
5
Q
orexigenic
A
promotes eating
6
Q
anorexigenic
A
stops eating
7
Q
NPY/AGRP
A
promotes food intake
8
Q
POMC/CART
A
suppresses food intake
9
Q
leptin
A
exerts its effects through leptin receptor, inhibits NPY/ AGRP neurons and stimulates POMC/CART neurons (satiety)
10
Q
insulin
A
inhibits NPY/AGRP neurons and stimulates POM/CART neurons (satiety)
11
Q
peptide YY
A
Inhibitory effect on the NPY/AGRP neurons so its anorexigenic (satiety)
phys exam 3
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