The foramen ovale
A) closes after birth due to decreased pulmonary vascular resistance.
B) normally shunts blood between the pulmonary artery and aorta.
C) normally shunts blood between the right and left ventricles.
D) has no importance in fetal respiratory physiology.
Correct Answer:
Verified
Q71: The ventilation/perfusion ratio is _ at the
Q72: Normal alveolar PO2 is
A)40 mm Hg.
B)46 mm
Q73: Normal venous PCO2 is
A)40 mm Hg.
B)46 mm
Q74: An oxygen electrode will measure the amount
Q75: The ventilation/perfusion ratio
A)is lowest at the apex
Q77: What instrument is used to measure the
Q78: Pulmonary circulation is a _ resistance and
Q79: Normal arterial PO2 is
A)40 mm Hg.
B)46 mm
Q80: Normal venous PO2 is
A)40 mm Hg.
B)46 mm
Q81: Hypocapnia would induce a rise in the
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