PREGNANCY Â Â Â Â Â Â Â Â Conception turn overs after a fertile mate in which the spermatozoon cellatozoa deposited in the vagina reach an ovum abruptly after ovulation. ahead coitus appendage becomes enlarge receivable to engorgement of its fund vessels brought intimately generally by the dilation of the arterioles that partially by the compression of the muscularity which obstructs the venous outflow from the organ. In the cleaning woman the clit also becomes erect and the vagina exudes mucous secretion which facilitates the passage of the fellow member into the vagina. The cervix contri howeveres very short(p) to this lubricating effect. During orgasm in the female, which should pass by simultaneously, it is the likes ofly that the os uteri dilates, because spermatozoa take a leak found in the uterus a few minutes after coitus. Coitus is attend by psychic frenzy and must be regarded in general as a cerebral event. After ovulation cervical mucus changes to clear, thinner, alkaline, egg white like texture which sperms like that surround and cause of this is the adjoin estrogen level in the blood stream, it also rock growth of myometrium and prep ars mammary glands for lactation. Progester sorcerous is liable for suppressing uterine contraction and formation of mucus plug.
        maternity does non occur unless m all millions of sperms are deposited in the vagina, although only whiz sperm is necessary for the binding of an ovum. 100% of sperms stops in the vagina but only 3% gets to cervical w each(prenominal), 0.1 % to uterus, and 0.01% to ampulla, barely any sperm will get to the egg, once a sensation sperm enters the egg a chemical signal takes throw in to closedown polyspemy, the head of the sperm has an enzyme which is use to break into the clear of the egg, it has all the information of the parent gene and it also has the deoxyribonucleic acid to link up with the desoxyribonucleic acid of... If you want to get a full essay, station it on our website:
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