Chapter 11, Problem 7CP

Summary Introduction

To review:

The following:

1. The negative feedback loop showing the control of ACTH secretion with a diagram.

2. The effect of ACTH injection, corticosteroids injection, surgical removal of pituitary and adrenal glands on ACTH secretion.

Introduction:

The hypothalamus controls the secretion of hormones by the anterior pituitary. However, sometimes the hypothalamus and anterior pituitary secretions are controlled by their target cells. This happens through a process of feedback. Negative feedback results in the inhibition of hormonal secretion whereas positive feedback leads to an increase in the secretion of the hormone.