What is an oval operture in the interotrial septum of the foetus called ?
a) fossa ovalis b) foramen ovalis
c) ligamentum orterosum d) ductus arteriosus
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a.fossa oval ovalis foetus called
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b) foramen ovalis
Foramen ovale is an opening in the interatrial septum of the foetal heart through which both the atria communicate with each other. In adults, this aperture is closed and is represented by a small oval depression called fossa ovalis.
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