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Birth is the act or process of bearing or bringing forth offspring, [1] also referred to in technical contexts as parturition. In mammals, the process is initiated by hormones which cause the muscular walls of the uterus to contract, expelling the fetus at a developmental stage when it is ready to feed and breathe.
After completion (or abortion) of a pregnancy, some species have postpartum estrus, which is ovulation and corpus luteum production that occurs immediately following the birth of the young. [14] For example, the mouse has a fertile postpartum estrus that occurs 14 to 24 hours following parturition.
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Abortion is the termination of a pregnancy by removal or expulsion of an embryo or fetus. [nb 1] [2] An abortion that occurs without intervention is known as a miscarriage or "spontaneous abortion"; these occur in approximately 30% to 40% of all pregnancies.
The following is a partial list of definitions as stated by obstetrics and gynecology (OB/GYN) textbooks, dictionaries, and encyclopedias: . Major OB/GYN textbooks. The National Center for Health Statistics defines an "abortus" as "[a] fetus or embryo removed or expelled from the uterus during the first half of gestation—20 weeks or less, or in the absence of accurate dating criteria, born ...
Greek στενός (stenós), narrow, short; + -σῐς (-sis), added to verb stems to form abstract nouns or nouns of action, result or process restenosis, stenosis: steth-of or pertaining to the upper chest, the area above the breast and under the neck Greek στῆθος (stêthos), chest, cuirass: stethoscope: stheno-strength, force, power
Grand multipara describes the condition of having given birth five or more times. [11] Grand multiparity is associated with adverse maternal and neonatal health outcomes. [12] Like gravidity, parity may also be counted. A female who has given birth one or more times can also be referred to as para 1, para 2, para 3, and so on.
A doula (left) applying pressure to a pregnant woman during labor. A doula (/ ˈ d uː l ə /; from Ancient Greek δούλα 'female slave'; Greek pronunciation:) is a non-medical professional who provides guidance for the service of others and who supports another person (the doula's client) through a significant health-related experience, such as childbirth, miscarriage, induced abortion or ...