Foramen ovale (heart)
Passageway between the atria of the human heart / From Wikipedia, the free encyclopedia
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Not to be confused with ostium secundum or foramen ovale (skull).
In the fetal heart, the foramen ovale (/fəˈreɪmən oʊˈvæli, -mɛn-, -ˈvɑː-, -ˈveɪ-/[1][2][3]), also foramen Botalli or the ostium secundum of Born, allows blood to enter the left atrium from the right atrium. It is one of two fetal cardiac shunts, the other being the ductus arteriosus (which allows blood that still escapes to the right ventricle to bypass the pulmonary circulation). Another similar adaptation in the fetus is the ductus venosus. In most individuals, the foramen ovale closes at birth. It later forms the fossa ovalis.
Quick Facts Details, Precursor ...
Foramen ovale (heart) | |
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Details | |
Precursor | Septum secundum |
System | Cardiovascular system |
Identifiers | |
MeSH | D054085 |
TA98 | A12.1.01.007 |
TA2 | 3967 |
FMA | 86043 |
Anatomical terminology |
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