________ is a hormone secreted by an empty stomach;it sends the "I am hungry" signal to the brain.
A) PYY
B) Orexin
C) Ghrelin
D) Insulin

Question

Quizplus · Accepted Answer

Ghrelin is a hormone secreted by an empty stomach that sends the "I am hungry" signal to the brain. It increases appetite and food intake. PYY is secreted by the intestines and signals the brain to stop eating. Orexin is a neuropeptide that promotes wakefulness and appetite. Insulin is produced by the pancreas in response to high blood glucose levels, and regulates glucose metabolism.

________ Is a Hormone Secreted by an Empty Stomach;it Sends