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Menstruation


menstruation
the discharge of blood and uterine tissue from the vagina at the end of the menstrual cycle
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby ...
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menstruation: the process by which the endometrium is released in females.
meristematic tissue: the growth tissue; the location of most cell division of vascular plants.
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menstruation The process in which the uterine endometrium breaks down and sheds cells, resulting in bleeding; occurs approximately once a month. The first day marks the beginning of the menstrual and ovarian cycles. PICTURE ...
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menstruation Loss of blood and tissue from the uterus at the end of a female primate's reproductive cycle.
meristem The tissue or zone from which new cells are produced by cell division.
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And absent any symptoms of morning sickness, often the only visible sign of a pregnancy is an interruption of her normal monthly menstruation cycle, (i.e. a "late period").
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About every 28 days, some blood and other products of the disintegration of the inner lining of the uterus (the endometrium) are discharged from the uterus, a process called menstruation.
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