If a portion of the pancreas is surgically removed from a rat and the rat subsequently loses its appetite, one explanation is that the removed portion contains cells that secrete a chemical signal that somehow stimulates appetite. Given this scenario, what type of chemical signaling is occurring?
A) autocrine
B) paracrine
C) endocrine
D) neuroendocrine

Question

Quizplus · Accepted Answer

The removed portion of the pancreas likely contained endocrine cells, which secrete hormones into the bloodstream to act on distant target cells, resulting in a decrease in appetite. This suggests that the chemical signaling is occurring via the endocrine pathway.

If a Portion of the Pancreas Is Surgically Removed from a Rat