Prenatal Development

INTRODUCTION Prenatal development is defined as the cognitive operation of increment and development within the womb, in which a single-electric jail cell zygote, that is, the cell make by the combination of a spermatozoan and an fruitcake, becomes an embryo, a fetus, and whence a baby. Conception leads when the genetic framework of the sperm and egg unite to form a acellular zygote. This happens in the fallopian furnish as the egg travels down the uterus. At this point, pregnancy occurs. It is the physiological motive in which a womans consistency is nurturing a maturation embryo or foetus. STAGES OF PRENATAL DEVELOPMENT. originative format This gift covers ii weeks afterward fertilization. The zygote undergoes rapid cell division then migrates belatedly down the bewilders fallopian tube and is implanted in the uterine wall. The placenta induces to form enabling the growing zygote to obligate itself to the mothers uterine wall. At this exhibit, oxyg en and nutrients from the mothers bloodstream is passed to the zygote, the wastes from the developing zygote pass into the mothers bloodstream for elimination. In some few cases, when the fertilized egg cell attaches itself outside the uterus, the mother suffers from what is cognize as ectopic pregnancy. This condition is very delicate and should be treated as a medical emergency since it nates cause death.

Embryonic stage This second stage starts from two weeks to two months. Vital variety meat such as the heart, the brain, arms and limbs begin to form in this stage. The structure is straight known as an embry o. This is a flowing of great vulnerability! due to the shaping of key organs. For this reason, miscarriages and deformities occur easily occur during this period. Foetus stage This third stage starts from the second month (8th week) of conception to birth. The developing organism is now called a fetus. There is rapid ingathering of muscles, bones improver in size and sex organs start to develop. By the 9th week, formation of the brain and differentiation of ovaries and testes...If you exigency to get a full essay, order it on our website: BestEssayCheap.com

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