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Fetal movement refers to motion of a fetus caused by its own muscle activity. Locomotor activity begins during the late embryological stage and changes in nature throughout development . Muscles begin to move as soon as they are innervated .
Women who have previously given birth have more relaxed uterine muscles which are more sensitive to fetal motion during subsequent pregnancies. For them fetal motion can sometimes be felt as early as 14 weeks. [4] Quickening indicates the start of fetal movements, usually felt 14–26 weeks after conception, or between the fourth and sixth month.
The movement of the fetus to cephalic presentation is called head engagement.It occurs in the third trimester.In head engagement, the fetal head descends into the pelvic cavity so that only a small part (or none) of it can be felt abdominally.
A fetus or foetus (/ ˈ f iː t ə s /; pl.: fetuses, foetuses, rarely feti or foeti) is the unborn mammalian offspring that develops from an embryo. [1] Following the embryonic stage, the fetal stage of development takes place.
At least three discrete body/limb movement in 30 minutes (episodes of active continuous movement considered a single movement. Less than three or two [3] movements US: Fetal muscle tone At least one [3] episode of active extension with return to flexion of fetal limb(s) or trunk, opening and closing of hand considered to be normal tone.
In mammals, the term refers chiefly to the early stages of prenatal development, whereas the terms fetus and fetal development describe later stages. [2] [4] The main stages of animal embryonic development are as follows: The zygote undergoes a series of cell divisions (called cleavage) to form a structure called a morula.
Fetal personhood was referenced in the 2024 GOP platform and embraced in a strategy endorsed by most leading antiabortion groups. It has been a focal point of the movement’s efforts for 50 years.
[citation needed] In the UK this is regarded as best indication of the health of the baby from the second trimester. Once routine, use of these charts has declined, [ 3 ] since women often forgot to complete them and fetal movement patterns are very varied, leading to unnecessary concern.