The body’s process of using food to make energy and use nutrients.

These glands have ducts that carry substances to organs, body parts, or the outside of the body.

Glands without ducts. They secrete hormones directly into the bloodstream.

Sometimes called the "Master Gland," this structure controls other glands and stimulates growth.

This gland produces insulin, which is necessary for glucose metabolism.

What hormone is produced by the testes, and is responsible for maintaining the male reproductive system?

What hormone is produced by the pineal gland and may help with regulating sleep/wake cycles?

This life threatening disorder of the endocrine system is caused by a deficiency of hormones from the adrenal glands. It has a common symptom of bronze colored skin.

What disease is caused by too much glucose in the bloodstream from a deficiency in insulin production?