Prenatal Development

Prenatal Development Essay By Heidi Marrotti Prenatal intimacy is the treat when a human foetus or fertilized junky gestates during pregnancy, from fertilization to birth. There ar several criterions that are toughened in the prenatal development process the number virtuoso is the fertilization, step in which semen is deposited into the vagina, with the cervix of the body and into the fallopian negatron tube The close thing to happen is the embryonic period, during this fourth dimension the embryo will spend the next few eld locomotion by the fallopian tubes this stage of development is also cognise as the blastocyst stage. Up to this point there is no gain in the overall size of the embryo. The next 3 to cardinal weeks, a primitive brain and spinal stack appear. middle muscles, ribs backbone, digestive tract go to develop. The embryo is roughly, a fractional inch to an inch grand, and weighs about one one-seventh of an ounce. The next nine to twelve w eeks the embryo now becomes cognize as a foetus. There is a rapid outgrowth in size. Nervous system, organs and muscles become organized and connected, and the fetus potty now kick, suck, open his or her mouth and a rumor of breathing appears. Also the external genitals are intimately formed and the fetuss sex is evident.

The fetus is approximately three inches long and weighs about less than ounce. all(a) of this development happens during what is cognise as the first trimester. The second trimester which involves weeks long dozen through xx four, the fetus now is approximately twelve inches long and weighs about one. Point eight p ounds. During this time the fetus increases ! in size rapidly, the mother can also begin to step the fetus move. Most of the brain neurons have actual during the first xx four weeks, the eyes are slender to visible light and the fetus reacts to sound. The final weeks which are weeks twenty five through thirty eight are known as the triad trimester. The fetus is now approximately twenty inches long and weighs some seven and half...If you want to get a full essay, rewrite it on our website: BestEssayCheap.com

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