A hormone is a chemical messenger from one cell (or group of cells) to another.
All multicellular organisms produce hormones including plants.
The best-known animal (and human) hormones are those produced by endocrine glands of vertebrate animals, but hormones are produced by nearly every organ system and tissue type in a human or animal body.
For more information about the topic Hormone, read the full article at Wikipedia.org, or see the following related articles:
Endocrine system The endocrine system is a control system of ductless glands that secrete chemical messengers called hormones that circulate within the body via the ... >
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Pituitary gland The pituitary gland, or hypophysis, is an endocrine gland about the size of a pea that sits in the small, bony cavity at the base of the brain. The ... >
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Anterior pituitary The anterior pituitary (also called the adenohypophysis) comprises the anterior lobe of the pituitary gland and is part of the endocrine system. ... >
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Human physiology Human physiology is the science of the mechanical, physical, and biochemical functions of normal humans or human tissues or organs. The principal ... >
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Thyroid hormone The thyroid hormones, thyroxine (T4) and triiodothyronine (T3), are tyrosine-based hormones produced by the thyroid gland. An important component in ... >
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Digestion Digestion is the process whereby a biological entity processes a substance, in order to chemically convert the substance into nutrients. Digestion ... >
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Endocrinology Endocrinology is a branch of medicine dealing with disorders of the endocrine system and its specific secretions called hormones. Hormones are ... >
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Growth hormone Growth hormone is a polypeptide hormone synthesised and secreted by the anterior pituitary gland which stimulates growth and cell reproduction in ... >
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Androgen Androgen is the generic term for any natural or synthetic compound, usually a steroid hormone, that stimulates or controls the development and ... >
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Blood sugar In medicine, blood sugar is a term used to refer to levels of glucose in the blood. Blood sugar concentration, or serum glucose level, is tightly ... >
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Note: This page refers to an article that is licensed under the GNU Free Documentation License. It uses material from the article Hormone at Wikipedia.org. See the Wikipedia copyright page for more details. Editor's Note: This article is not intended to provide medical advice, diagnosis or treatment.
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