What role do hormones play in hunger and satiety? ...

[pepyto]

What role do hormones play in hunger and satiety?

Question 2

Which of the following statements is true about the pancreas?
 A) The pancreas lies over the top of the stomach.
  B) The sole function of the pancreas is to produce hormones.
  C) The pituitary gland produces stimulating hormones that control the pancreas.
  D) The islets contain a variety of different cells producing different hormones.
  E) The pancreas stores glucose, which can be released into the blood.

[Li Jun]

Answer to Question 1

Levels of ghrelin, a hormone produced by P/D1 cells, lining the fundic region of the stomach, rise before meals to initiate hunger and decline shortly after eating to curb appetite. Ghrelin is also antagonistic to leptin, a fat-tissue-derived hormone that induces satiety. Another hormone from the stomach and small intestine, obestatin, decreases appetite. The same gene encodes both ghrelin and obestatin.

Answer to Question 2

D

[pepyto]

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[Li Jun]

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