Which of the following strongly suggests that the actions of ghrelin on food intake involve NPY?
A) Ghrelin released from the stomach strongly inhibits NPY release in the hypothalamus.
B) Ghrelin cells in the stomach contain NPY receptors.
C) NPY levels are constant across the day-night cycle.
D) Ghrelin receptors are located on NPY neurons.
E) NPY strongly inhibits the capacity of ghrelin to suppress drinking.
Question 2
A key effect of ghrelin that results in the stimulation of eating is to
A) cause the stomach to release less ghrelin.
B) activate CCK receptors in the brain.
C) activate NPY neurons within the hypothalamus.
D) decrease the release of NPY in the hypothalamus.
E) increase the entry of insulin into the brain.
Influence of nutritional intake
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