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Endocrine Glands

A group of specialized cells that release hormones into the blood. For example, the islets in the pancreas, which secrete insulin, are endocrine glands.

PubMed Health Glossary
(Source: NIH - National Institute of Diabetes and Digestive and Kidney Diseases)

Terms to know

Cells
The basic subunit of any living organism; the simplest unit capable of independent life. Although there are some single-celled organisms, such as bacteria, most organisms consist of many cells that are specialized for particular functions.
Glands
A group of cells that secrete substances. Endocrine glands secrete hormones. Exocrine glands secrete salt, enzymes, and water.
Hormones
A messenger molecule that helps coordinate the actions of various tissues; made in one part of the body and transported, via the bloodstream, to tissues and organs elsewhere in the body.
Thyroid Gland
A gland located beneath the larynx (voice box) that makes thyroid hormone and calcitonin. The thyroid helps regulate growth and metabolism. Also called thyroid gland.

Terms to know

Cells
The basic subunit of any living organism; the simplest unit capable of independent life. Although there are s...
Glands
A group of cells that secrete substances. Endocrine glands secrete hormones. Exocrine glands secrete salt,...
Hormones
A messenger molecule that helps coordinate the actions of various tissues; made in one part of the body and t...
See all 4

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