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Sketch showing foramen ovale in a fetal heart. Red arrow shows blood from the inferior cava traveling to the right atrium and then to the left atrium. HF: right atrium, VF: left atrium. HH and VH: right and left ventricle. The heart still has a common pulmonary vein (LV), instead of four.
In later stages of pregnancy, a simple Doppler fetal monitor can be used to quantify the fetal heart rate. A fetal heartbeat can be detected at around 17 to 20 weeks of gestation when the chambers of the heart have become sufficiently developed. [20] During childbirth, the parameter is part of cardiotocography, which is where the fetal ...
Echogenic intracardiac focus (EIF) is a small bright spot seen in the baby's heart on an ultrasound exam. This is thought to represent mineralization, or small deposits of calcium, in the muscle of the heart. EIFs are found in about 3–5% of normal pregnancies and cause no health problems. EIFs themselves have no impact on health or heart ...
A pregnant woman nearly died after her unborn baby kicked so hard that it tore a hole in the wall of her womb.
The fetal circulation is composed of the placenta, umbilical blood vessels encapsulated by the umbilical cord, heart and systemic blood vessels. A major difference between the fetal circulation and postnatal circulation is that the lungs are not used during the fetal stage resulting in the presence of shunts to move oxygenated blood and ...
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The major changes that are made by the body occur at the first breath (in the case of heart and lung functions) and up to weeks after birth (such as the liver's enzyme synthesis). The foramen ovale becomes the fossa ovalis as the foramen closes while edge of the septum secundum in right atrium becomes the anulus ovalis, so the depression ...
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