Teat

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Teat

Teat (/tiːt/), also known as a nipple, is a small projection of skin containing the outlets for milk in mammals. The term is most commonly used in relation to cattle and other ruminants, but can also refer to the equivalent organ in other mammals, including humans.

Etymology

The word "teat" comes from the Old English titt, which is of Germanic origin and related to the Dutch tiet and German Zitze.

Anatomy

A teat is composed of a mammary gland that is surrounded by circular muscle tissue that contracts to expel milk. It is covered by a thin layer of skin, and is often covered by hair in non-human mammals. The teat contains a milk duct, which carries milk from the mammary gland to the tip of the teat.

Related Terms

  • Mammary gland: The organ in female mammals that produces milk for offspring.
  • Lactation: The process of producing milk in mammals.
  • Mastitis: An infection of the mammary gland, often occurring in dairy cows and other mammals that are milked regularly.
  • Udder: The organ that contains the mammary glands in cattle and some other mammals.

See Also

External links

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