LACTATION Meaning and
Definition
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Lactation is a biological process that refers to the production and secretion of milk from the mammary glands of female mammals. It is an essential physiological function that enables mammals to nourish their offspring.
During lactation, hormonal changes triggered by pregnancy stimulate the development of specialized milk-producing cells in the mammary glands, known as alveoli. These alveoli are responsible for the synthesis and accumulation of milk, which is then transported through a complex network of ducts towards the nipple for eventual release.
Lactation typically begins shortly after giving birth, as a response to the hormonal shift that occurs during pregnancy. The release of the hormone prolactin from the pituitary gland plays a crucial role in initiating and maintaining lactation. Prolactin stimulates the mammary glands to produce milk, while the hormone oxytocin promotes the ejection of milk during breastfeeding or pumping.
The composition of milk produced during lactation is specifically tailored to meet the nutritional requirements of the developing young. It contains a balanced mix of macronutrients, such as proteins, fats, and carbohydrates, as well as an array of essential vitamins, minerals, and antibodies that help protect the newborn against infections and diseases. Lactation is not limited to humans and is observed in a wide range of mammalian species, including cows, dogs, cats, and even some non-primate mammals. The duration and intensity of lactation vary among species, but in humans, it typically continues for several months to a few years, providing vital nourishment and immune support to infants.
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1. The production of milk. 2. The period following childbirth during which milk is formed in the breasts.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
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The time of suckling; the act of giving milk.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
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Other Common Misspellings for LACTATION
Etymology of LACTATION
The word "lactation" has its roots in Latin. It comes from the Latin word "lactatio", which is derived from the verb "lactare", meaning "to nurse" or "to suckle". "Lactare" itself is derived from "lac", which means "milk" in Latin. Thus, "lactation" refers to the production and secretion of milk from the mammary glands, particularly in mammals, for the nourishment of their young.
Similar spelling words for LACTATION
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