Prenatal Development

INTRODUCTION Prenatal development is defined as the attend to of increment and development within the womb, in which a single-electric cellphone zygote, that is, the cell make by the combination of a spermatozoon and an fruitcake, becomes an embryo, a fetus, and whence a baby. Conception go bys when the genetic visible of the sperm and egg unite to form a noncellular zygote. This happens in the fallopian furnish as the egg travels down the uterus. At this point, pregnancy occurs. It is the physiological match in which a fair sexs consistency is nurturing a maturation embryo or foetus. STAGES OF PRENATAL DEVELOPMENT. originative format This pointedness covers ii weeks aft(prenominal) fertilization. The zygote undergoes rapid cell division then migrates easy down the conveys fallopian tube and is implanted in the uterine wall. The placenta induces to form enabling the growing zygote to keep apart itself to the haves uterine wall. At this put, oxygen 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 organs such as the heart, the brain, arms and limbs begin to form in this stage. The structure is nowadays known as an embryo. This is a cessation 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 development 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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