Control of appetite Flashcards

1
Q

Which part of the brain is appetite regulated by?

A

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

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2
Q

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

A

satiety centre
hunger (feeding centre)

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3
Q

Where in the hypothalamus is the satiety centre located?

A

ventromedial nucleus (VMN)

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4
Q

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

A

lateral hypothalamic area (LHA)

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5
Q

What are anorexigenic and orexigenic responses?

A

anorexigenic = inhibit feeding
orexigenic = stimulates feeding

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6
Q

What hormone drives the sensation of hunger?

A

ghrelin

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7
Q

When and where is ghrelin produced?

A

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

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8
Q

What elicits short term orexigenic responses?

A

ghrelin

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9
Q

What elicits long term anorexigenic responses?

A

leptin

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