The human body has 11 major endocrine glands, including the thyroid, pancreas, stomach, adrenal, pituitary and thymus. The endocrine glands and tissues secrete hormones, the substances that regulate the body’s reproduction, growth and development, its response to the environment, and the provision of the energy and nutrients needed for cell function. Endocrinologists conduct research and provide treatment for a wide range of functions and disorders of the human body, including infertility, metabolism, glandular cancers, birth control, dwarfism, genetic dysfunction, diabetes, heart disease, and hormonal imbalances. Endocrinologists also develop new drugs and treatments through biogenetic and synthetic techniques.

Atlas of the Body
The Endocrine System
Your endocrine system is a collection of glands that produce hormones that regulate your body’s growth, metabolism, and sexual development and function. The hormones are released into the bloodstream and transported to tissues and organs throughout your body.

Adrenal Glands
Divided into 2 regions, Adrenal glands secrete hormones that influence the body’s metabolism, blood chemicals, and body characteristics, as well as influence the part of the nervous system that is involved in the response and defense against stress.

Hypothalamus
Activates and controls the part of the nervous system that controls involuntary body functions, the hormonal system, and many body functions, such as regulating sleep and stimulating appetite.

Pineal Body
Involved with daily biological cycles.

Thymus Gland
Plays a role in the body’s immune system.