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Open and Closed Circulatory System

Foreman ovale

Question

Foreman ovale

A

Connects the two atria in the foetal heart.

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B

Is a condition in which the heart valves do not completely close.

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C

Is a shallow depression in the inter ventricular septum.

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D

Is a connection between the pulmonary trunk and the aorta in the foetus.

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Solution

The correct option is A Connects the two atria in the foetal heart.
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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III. The walls of the left ventricle are about three times thicker than the right ventricle.
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