A fetus is a stage in the prenatal development of viviparous organisms. This stage lies between embryogenesis and birth. [1] Many vertebrates have fetal stages, ranging from most mammals …

A fetus or foetus is the stage that an organism goes through before it is born as a baby. In humans a fetus is the stage (time of development ) after the embryonic stage, and begins …

Pregnancy is the time during which one or more offspring develops (gestates) inside a woman 's uterus (womb). [4][13] A multiple pregnancy involves more than one offspring, such as with …

2017年7月6日 · Throughout the process of fetal development, the growing fetus goes through three distinct stages, each characterized by specific events. As the embryo enters the fetal …

Human embryonic development or human embryogenesis is the development and formation of the human embryo. It is characterised by the processes of cell division and cellular …

2024年12月24日 · fetus, the unborn young of any vertebrate animal, particularly of a mammal, after it has attained the basic form and structure typical of its kind. A brief treatment of the …

2023年4月12日 · In human pregnancies, a baby-to-be isn’t considered a fetus until the 9th week after conception, or week 11 after your last menstrual period (LMP). The embryonic period is …

the developing young in the uterus, specifically the unborn offspring in the postembryonic period, which in humans is from the third month after fertilization until birth. See also embryo. The …

2025年1月18日 · fetus (plural fetuses or fetus or (hypercorrect) feti or (misconstructed) fetii) (American spelling, also Canada, Australia) An unborn or unhatched vertebrate showing signs …

Fetus (lat. fetus = uzgoj, potomstvo, sjeme) je embrion nakon formiranja unutrašnjih organa za vrijeme trudnoće. Fetusno razdoblje kod čovjeka počinje u 11. sedmici trudnoće, a završava …