Post natal life closure of Foramen ovale occur because of….

Post natal life closure of Foramen ovale occur because of…. mcq given below:

(a) Decreased blood flow
(b) Shifting of pressures from right side to the left side of the heart
(c) Increased PO2
(d) Increased in oxygen saturation

Ans:(b) Shifting of pressures from right side to the left side of the heart

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