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Hormone

Contents

Broader Terms

cell communication molecule

Narrower Terms

invertebrate hormone, neurohormone, peptide hormone, pheromone, phytohormone, reproductive hormone, selective estrogen receptor modulator, steroid hormone, thyroid hormone

Related Terms

endocrine gland /system, endocrinology

Scope Note

chemical substances having a specific regulatory effect on the activity of a certain organ or organs, especially substances secreted by various endocrine glands and transported in the bloodstream to the target organs.

Facts

  • A chemical messenger formed in one part of the body but affects another part of the body. It stimulates or suppresses cell and tissue activity.
  • Hormones usually travel in the bloodstream.
  • A chemical substance released into the body by the endocrine glands such as the thyroid, adrenal, or ovaries.
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