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Following embryonic development the
fetal stage of
development takes place. In
human prenatal development,
fetal development begins from the
ninth w****...
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Fetal viability is the
ability of a
human fetus to
survive outside the uterus.
Medical viability is
generally considered to be
between 23 and 24 w****s...
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Fetal position (British English: also foetal) is the
positioning of the body of a
prenatal fetus as it develops. In this position, the back is curved...
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fetal heartbeat and
uterine contractions during pregnancy and labour. The
machine used to
perform the
monitoring is
called a cardiotocograph.
Fetal heart...
- humans, the
circulatory system is
different before and
after birth. The
fetal circulation is
composed of the placenta,
umbilical blood vessels encapsulated...
- The
fetal pole is a
thickening on the
margin of the yolk sac of a
fetus during pregnancy. It is
usually identified at six w****s with ****l ultrasound...
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Fetal hemoglobin, or
foetal haemoglobin (also
hemoglobin F, HbF, or α2γ2) is the main
oxygen carrier protein in the
human fetus. Hemoglobin F is found...
- fertilization, in the
germinal stage of
embryonic development, and
continues in
fetal development until birth. In
human pregnancy,
prenatal development is also...
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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...
- The
fetal membranes are the four
extraembryonic membranes, ****ociated with the
developing embryo, and
fetus in
humans and
other mammals. They are the...
