Chapter 17.1, Problem 5AYLO

Summary Introduction

To discuss:

The term for organs or cells that are influenced by a given specific hormone, and why hormone has specific respond to its targeted organs or cells even though the hormone travels throughout the body.

Introduction:

Hormones are chemical messengers secreted by the glands into the extracellular fluids. They regulate growth, development, blood pressure, metabolism, fluid concentration, and maintain homeostasis in the body. Both the positive and negative feedback mechanism may regulate the hormone pathways. Positive feedback amplifies the stimulus whereas; negative feedback dampens the stimulus and stops the pathway.