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  2. Fetus - Wikipedia

    en.wikipedia.org/wiki/Fetus

    A human fetus, attached to placenta, at three months gestational age. In humans, the fetal stage starts nine weeks after fertilization. [7] At this time the fetus is typically about 30 millimetres (1 + 1 ⁄ 4 in) in length from crown to rump, and weighs about 8 grams. [7] The head makes up nearly half of the size of the fetus. [8]

  3. Embryo - Wikipedia

    en.wikipedia.org/wiki/Embryo

    A newly developing human is typically referred to as an embryo until the ninth week after conception, when it is then referred to as a fetus. In other multicellular organisms, the word "embryo" can be used more broadly to any early developmental or life cycle stage prior to birth or hatching.

  4. Human embryonic development - Wikipedia

    en.wikipedia.org/wiki/Human_embryonic_development

    At the beginning of the ninth week, the embryo is termed a fetus (spelled "foetus" in British English). In comparison to the embryo, the fetus has more recognizable external features and a more complete set of developing organs. Human embryology is the study of this development during the first eight weeks after fertilization.

  5. Timeline of human prenatal development - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_human_prenatal...

    The fetus reaches a length of about 40–48 cm (16–19 in). The fetus weighs about 2.5 to 3 kg (6 lb 10 oz)to 6 lb 12 oz). Lanugo begins to disappear. Body fat increases. Fingernails reach the end of the fingertips. A baby born at 36 weeks has a high chance of survival, but may require medical interventions. Fetus at 38 weeks after fertilization.

  6. Prenatal development - Wikipedia

    en.wikipedia.org/wiki/Prenatal_development

    Prenatal development (from Latin natalis 'relating to birth') involves the development of the embryo and of the fetus during a viviparous animal's gestation.Prenatal development starts with fertilization, in the germinal stage of embryonic development, and continues in fetal development until birth.

  7. Ruling: Fetus can be referred to as 'unborn human being' in ...

    www.aol.com/lifestyle/arizona-court-fetus...

    The language describing an embryo or fetus as an “unborn human being” will go in a pamphlet that gives voters information on candidates and ballot measures to help inform their choices.

  8. Arizona Supreme Court says fetus can be called 'unborn ... - AOL

    www.aol.com/news/arizona-supreme-court-says...

    The Arizona Supreme Court on Wednesday ruled a fetus can be referred to as an "unborn human being" in pamphlets for voters to decide about the constitutional right to an abortion. Voters in the ...

  9. Gestation - Wikipedia

    en.wikipedia.org/wiki/Gestation

    Drawing of a fetus in utero. Gestation is the period of development during the carrying of an embryo , and later fetus , inside viviparous animals (the embryo develops within the parent). [ 1 ] It is typical for mammals , but also occurs for some non-mammals.