An organ that makes chemicals to control certain body functions.

Some release their chemicals through ducts, or tubes, while others release their chemicals directly into the blood.

The chemicals that are produced by endocrine glands.  These chemicals are released directly into the blood.

It is the system that is made up of glands that release chemicals to control certain body functions.

The four glands that are attached to the thyroid gland.  They release a hormone that helps control the amount of calcium and phoporous in the blood.

The male reproductive organs.

The female reproductive organs.

A gland that is located just under the stomach.  It has two important jobs: (1) it releases a chemical that aids in digestion, and (2) it releases insulin, which controls the amount ofo glucose (sugar) in the blood.

It is located at the base of the brain. It releases many different hormones that control other glands. It also releases a hormone that controls how the body grows.

It is also called the "master gland".

There are two and they are located above the kindeys. They release hormones that help control the body's use of sugar and minerals. They also release adrenaline.

It is located in the neck. It makes a hormone that controls the rate at which the body uses energy.