Description

Birth app is the your best choice if youwantto know everything about Birth!!

Birth, also known as parturition, is the act or process ofbearingor bringing forth offspring. In mammals, the process isinitiatedby hormones which cause the muscular walls of the uterustocontract, expelling the fetus at a developmental stage when itisready to feed and breathe.

In some species the offspring is precocial and can movearoundalmost immediately after birth but in others it is altricialandcompletely dependent on parenting. In marsupials, the fetus isbornat a very immature stage after a short gestational periodanddevelops further in its mother's pouch.

It is not only mammals that give birth. Some reptiles,amphibians,fish and invertebrates carry their developing younginside them.Some of these are ovoviviparous, with the eggs beinghatched insidethe mother's body, and others are viviparous, withthe embryodeveloping inside her body, as in mammals.

Humans usually produce a single offspring at a time. Themother'sbody is prepared for birth by hormones produced by thepituitarygland, the ovary and the placenta. The total gestationperiod fromfertilization to birth is normally about 38 weeks (birthusuallyoccurring 40 weeks after the last menstrual period). Thenormalprocess of childbirth takes several hours and hasthreestages.

The first stage starts with a series of involuntary contractionsofthe muscular walls of the uterus and gradual dilation ofthecervix. The active phase of the first stage starts when thecervixis dilated more than about 4 cm in diameter and is whenthecontractions become stronger and regular.

The head (or the buttocks in a breech birth) of the baby ispushedagainst the cervix, which gradually dilates until is fullydilatedat 10 cm diameter. At some time, the amniotic sac bursts andtheamniotic fluid escapes (also known as rupture of membranesorbreaking the water).

In stage two, starting when the cervix is fully dilated,strongcontractions of the uterus and active pushing by the motherexpelsthe baby out through the vagina, which during this stage oflabouris called a birth canal as this passage contains a baby, andthebaby is born with umbilical cord attached.

In stage three, which begins after the birth of the baby,furthercontractions expel the placenta, amniotic sac, and theremainingportion of the umbilical cord usually within a fewminutes.

This app has following topics with page name as follows:

• Effectiveness
• Hormonal Methods of Birth Control
• Birth Control Pill
• Transdermal Patch
• Contraceptive Ring
• Injection Method
• Intrauterine Device (IUD)
z Emergency Contraceptive Pill (ECP)
z Barrier Methods of Birth Control
• Male Condom
• Female Condom
• Diaphragm
• Sponge
• Spermicides

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