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Hormone - Glossary Term Illustration

Glossary Term

Hormone

Hormones are chemical messengers produced by the endocrine system and transported via tissue fluids such as blood to stimulate cells to act. Growth hormone is an example of a hormone that is secreted by the pituitary gland in the brain, stimulating growth, cell reproduction, and cell regeneration in certain types of cells.

Hormone

Hormone: Chemical messengers produced by the endocrine system, transported via tissue fluids such as blood, to stimulate cells to "act."

  • Example: Growth hormone is secreted by the pituitary gland in the brain; stimulating growth, cell reproduction and cell regeneration in certain types of cells

The English physician E. H. Starling discovered in collaboration with the physiologist W. M. Bayliss secretin, the first hormone, in 1902. (1).

  1. Henriksen, J. H., & de Muckadell, O. S. (2000). Secretin, its discovery, and the introduction of the hormone concept. Scandinavian journal of clinical and laboratory investigation60(6), 463-472.

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