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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 to many fish.
Jul 12, 2024 · 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 fetus follows. For more information on the human fetus, see pregnancy.
Apr 12, 2023 · During each week of pregnancy, your baby is growing. Here’s a look at what medical terms like embryo and fetus mean in terms of development.
The meaning of FETUS is an unborn or unhatched vertebrate especially after attaining the basic structural plan of its kind; specifically : a developing human from usually two months after conception to birth.
Fetal development is an orderly and intricate process. It begins before you even know you’re pregnant and ends with the birth of your baby. Between conception and delivery, there are many detailed steps that have to occur. There are three stages of fetal development: germinal, embryonic and fetal.
Jul 6, 2017 · Fetus Definition. Fetal development occurs between the embryonic stage of development and birth in humans. This stage begins after 11 weeks of gestation, when the embryo begins to exhibit human characteristics, and lasts until birth.
Nov 14, 2022 · As a baby grows from a zygote to an embryo to a fetus to a newborn, the weekly change is astonishing. Check out fetal development by week to see how a baby grows as pregnancy progresses.
Milestones in the development of your fetus: 5 weeks: the heart starts to beat and most other organs begin to develop, followed by the brain and spinal cord. 10 weeks: the embryo is considered a fetus. 12 weeks: most organs are formed. 14 weeks: doctors can tell the sex of the fetus.
Fetus: Developmental stage of a human being in its mother’s womb, from 10 weeks of pregnancy until birth. Ultrasound: An examination using an ultrasound device that can see the embryo or fetus in the mother’s womb. Vernix caseosa: A whitish substance coating the skin of a newborn baby.
By 12 weeks of pregnancy: The fetus fills the entire uterus. By about 14 weeks: The sex can be identified. By about 16 to 20 weeks: Typically, the pregnant woman can feel the fetus moving.
