Which of the following is an example of a simple endocrine pathway?
A) control of metabolism by thyroid hormones
B) release of secretin by cells of the duodenum in response to acid
C) release of antidiuretic hormone from the posterior pituitary gland to regulate water balance
D) regulation of growth by the production of growth hormone

Question

Quizplus · Accepted Answer

A simple endocrine pathway involves a single hormone being released in response to a specific stimulus and acting on a target tissue to elicit a response. In this case, the release of secretin by cells in the duodenum in response to acid is a simple pathway because it involves only one hormone acting on the pancreas to stimulate the release of bicarbonate to neutralize the acid. The other options involve more complex pathways with multiple hormones and feedback mechanisms involved.

Which of the Following Is an Example of a Simple