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Umbilical cord compression can result from, for example, entanglement of the cord, [16] a knot in the cord, [16] or a nuchal cord, [16] (which is the wrapping of the umbilical cord around the fetal neck) [17] but these conditions do not always cause obstruction of fetal circulation.
In velamentous cord insertion, the vessels of the umbilical cord are improperly inserted in the chorioamniotic membrane, and hence the vessels traverse between the amnion and the chorion towards the placenta. [1] [11] Without Wharton's jelly protecting the vessels, the exposed vessels are susceptible to compression and rupture. [1] [9]
In humans, the circulatory system is different before and after birth. 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 ...
Waiting at least two minutes before clamping the umbilical cord of a premature baby may reduce the risk of death by at least a third, new research suggests. ... One analysis compared the impact of ...
Nuchal cord, when the umbilical cord is (tightly) around the neck of the fetus [2] Entanglement of the cord [2] Knot in the cord [2] Cord prolapse, where the umbilical cord exits the birth canal before the baby, which can cause cord compression. [3] As a complication of oligohydramnios in which there is insufficient amniotic fluid
The amnion is the innermost layer and, therefore, contacts the amniotic fluid, the fetus and the umbilical cord. [5] The internal pressure of the amniotic fluid causes the amnion to be passively attached to the chorion. [4] The chorion functions to separate the amnion from the maternal decidua and uterus. [4]
The baby was found swaddled in a towel inside a basket and breathing weakly with the umbilical cord still attached around 3 a.m. on Tuesday, Jan. 21, News 4 (WOAI) San Antonio reported on Jan 24.
The embryo is joined to the trophoblastic shell by a narrow connecting stalk that develops into the umbilical cord to attach the placenta to the embryo. [ 11 ] [ 15 ] Arteries in the decidua are remodelled to increase the maternal blood flow into the intervillous spaces of the placenta, allowing gas exchange and the transfer of nutrients to the ...