Sunday, December 8, 2013

Reproductive System

The Reproductive musical arrangement By Jenna Hachey SPN Mrs. Debbie Churchill March 12, 2012 The Reproductive System Most organ systems of the dust function almost unceasingly to maintain the well-being of the individual. The generative system, however, looks as if to sleep until puberty. The chief(a) sex organs or gonads are the testes in viriles and the ovaries in feminines. The gonads nominate sex jail cells or gametes and secrete sex hormones. The be various collection of productive structures- ducts, glands, and external genitalia- are referred to as accessory reproductive organs. Although male and young-bearing(prenominal) reproductive organs are quite unique, their stock(a) purpose is to produce offspring. The males reproductive mathematical function is to generate male gametes called sperm cellatozoon and to deliver them to the female reproductive tract, where fertilization can mint place. The mutually complementary character refe rence of the female is to produce female gametes, called ova or eggs. When their events are appropriately timed, a sperm and egg fuse to form a fertilized egg, the first cell of the new individual, from which all body cells allow for arise.
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The male and female reproductive systems are equal partners in events leading up to fertilization, but once fertilization has happened, the female uterus provides a protective environment in which the conceptus develops until birth. The sex hormones- androgens in males and estrogens and progesterone in females- play vital roles in the increase and function of the reproductive organs and in sexual expression and drives! . These gonadal hormones also influence the ripening and development of some other organs and tissues of the body. Meiosis Both spermatogenesis and oogenesis, its reproduction in the female, involve meiosis, the different kind of nuclear part that, for the most part, happens only within the gonads. Recall that mitosis- the form by which most body cells divide- distributes replicated chromosomes equally between the two...If you sine qua non to unsex a full essay, order it on our website: OrderCustomPaper.com

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