Chapter 25

-has been used to relieve negative symptoms of menopause
-may caused increased risks of stroke and cancer

-regulatory chemicals that affect specific sites in the body
-produced by most plants and animals
-made by endocrine glands

-consists of all hormone-secreting cells
-is the body's main system for internal chemical regulation

cells that have receptors for that specific hormone

-Is part of the brain
-Is the main control center of the endocrine system
-Receives information from nerves about the:
+Internal condition of the body
+External environment

-Is a pea-sized structure that hangs below the hypothalamus
-Responds to signals from the hypothalamus
-Secretes hormones that influence many body functions

Secretes hormones made in the hypothalamus

-synthesizes its own hormones
-secretes hormones directly into the blood

promotes development and enlargement of all parts of the body

-produced by anterior pituitary
-act as natural pain killers

produces two antagonistic hormones that play important roles in managing the body's energy supplies: insulin and glucagon

reduces blood sugar levels

increases blood sugar levels

paired structures resting atop the kidneys; consists of adrenal medulla and adrenal cortex

-secreted by adrenal medulla
-enable body to respond to stress
-produce the fight or flight syndrome