Inhibitory neurotransmitters used by the hunger-sensitive neurons of the arcuate nucleus that inhibit the PVN include:
A) alpha-MSH and leptin.
B) NPY and insulin.
C) insulin and glucagon.
D) NPY and AgRP.

Question

Quizplus · Accepted Answer

The inhibitory neurotransmitters used by the hunger-sensitive neurons of the arcuate nucleus that inhibit the PVN are neuropeptide Y (NPY) and agouti-related protein (AgRP). These neurotransmitters promote hunger and feeding behavior by inhibiting the actions of satiety-promoting neurons in the PVN. Options A and B are incorrect because alpha-MSH and leptin are satiety-promoting neurotransmitters, while NPY and insulin promote hunger. Option C is also incorrect because glucagon is not an inhibitory neurotransmitter in this context.

Inhibitory Neurotransmitters Used by the Hunger-Sensitive Neurons of the Arcuate