Endocrine Glands & Their Hormones

Endocrine system endocrine system Paul Andersen explains the major elements in the endocrine system He explains how glands digestive system The endocrine system—the other communication system in the body—is made up of endocrine glands that produce hormones, chemical substances

muscular system Endocrine systems, also referred to as hormone systems, are found in all mammals, birds, fish, and many other types of living organisms