Control of appetite

Question 1

Which part of the brain is appetite regulated by?

Answer 1

hypothalamus - specifically independent control centres in the hypothalamus driving 2 opposing appetite sensations

Question 2

What are the 2 appetite-related independent control centres in the hypothalamus?

Answer 2

satiety centre
hunger (feeding centre)

Question 3

Where in the hypothalamus is the satiety centre located?

Answer 3

ventromedial nucleus (VMN)

Question 4

Where in the hypothalamus is the hunger (feeding) centre located?

Answer 4

lateral hypothalamic area (LHA)

Question 5

What are anorexigenic and orexigenic responses?

Answer 5

anorexigenic = inhibit feeding
orexigenic = stimulates feeding

Question 6

What hormone drives the sensation of hunger?

Answer 6

ghrelin

Question 7

When and where is ghrelin produced?

Answer 7

released from stomach during fasting in direct response to reduced stretch of the stomach

Question 8

What elicits short term orexigenic responses?

Answer 8

ghrelin

Question 9

What elicits long term anorexigenic responses?

Answer 9

leptin