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In biology and medicine, gravidity and parity are the number of times a female has been pregnant (gravidity) and carried the pregnancies to a viable gestational age (parity). [1] These two terms are usually coupled, sometimes with additional terms, to indicate more details of the female's obstetric history. [ 2 ]
A woman who is (or has been only) pregnant for the first time is referred to as a primigravida, [21] and a woman in subsequent pregnancies as a multigravida or as multiparous. [19] [22] Therefore, during a second pregnancy a woman would be described as gravida 2, para 1 and upon live delivery as gravida 2, para 2.
Fecundity is defined in two ways; in human demography, it is the potential for reproduction of a recorded population as opposed to a sole organism, while in population biology, it is considered similar to fertility, [1] [2] [3] the natural capability to produce offspring, [4] measured by the number of gametes (eggs), seed set, or asexual ...
The study of the early history of common law in the context of the abortion debate presents some challenges. Over the years dedicated scholars have uncovered case law that supports the argument that abortion was considered murder, in at least some cases, even before quickening.
Parity learning, a problem in machine learning; Parity of even and odd functions; Parity (physics), a symmetry property of physical quantities or processes under spatial inversion; Parity (biology), the number of times a female has given birth; gravidity and parity represent pregnancy and viability, respectively
Triplet brothers at graduation. A multiple birth is the culmination of one multiple pregnancy, wherein the mother gives birth to two or more babies.A term most applicable to vertebrate species, multiple births occur in most kinds of mammals, with varying frequencies.
Human reproductive biology is primarily controlled through hormones, which send signals to the human reproductive structures to influence growth and maturation.These hormones are secreted by endocrine glands, and spread to different tissues in the human body.
Semelparity and iteroparity are two contrasting reproductive strategies available to living organisms. A species is considered semelparous if it is characterized by a single reproductive episode before death, and iteroparous if it is characterized by multiple reproductive cycles over the course of its lifetime.