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ovary
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ovary

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The human reproductive organs. In the female, gametes called ova are released regularly in the ovaries after puberty. The Fallopian tubes carry the ova to the uterus or womb, in which the fetus will develop. In the male, sperm is produced inside the testes after puberty; about 10 million sperm cells are produced each day, enough to populate the world in six months. The sperm duct or vas deferens, a continuation of the epididymis, carries sperm to the urethra during ejaculation.

Structure found in seed plants that develops into a seed after fertilization. It consists of an embryo sac containing the female gamete (ovum or egg cell), surrounded by nutritive tissue, the nucellus. Outside this there are one or two coverings that provide protection, developing into the testa, or seed coat, following fertilization.

In angiosperms (flowering plants) the ovule is within an ovary, but in gymnosperms (conifers and their allies) the ovules are borne on the surface of an ovuliferous (ovule-bearing) scale, usually within a cone, and are not enclosed by an ovary.



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Mentioned in?  References in periodicals archive?   Hutchinson browser?   Full browser?
 
The syndrome expresses itself as a large number of small immature cysts on the ovaries that cause a disturbance in the production of hormones and an increase in the secretion of the male sex hormone.
Two new techniques to preserve and transplant ovaries might give women a better chance to have children when they are older, the Associated Press reported.
According to a new study, there are grave consequences for women whose healthy ovaries are removed during hysterectomy.
 
 
 
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