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A fetus or foetus (/ ˈ f iː t ə s /; pl.: fetuses, foetuses, rarely feti or foeti) is the unborn offspring that develops from a mammal embryo. Following embryonic development , the fetal stage of development takes place.
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.
Feb 21, 2023 · Curious about how your baby is developing in the womb? Here's a breakdown of fetal development week by week.
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.
Top things to know. The embryonic stage begins with fertilization and lasts for eight weeks. From the 10th week of pregnancy (if you’re counting from the start of the last period) until birth is the fetal stage. A rapid and complex transition happens at birth, from dependent fetus to independent newborn.
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.
Fetal development is how a fetus grows during pregnancy. It begins at conception and ends at birth. Many changes occur to the fetus and the pregnant person in this time.
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. Menu
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. Women who have been pregnant before typically feel movements about 2 weeks earlier than women who are pregnant for the first time.
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. 16 to 20 weeks: you may be able to feel movement
