(Multiple Choice Question): The left atrium is damaged and is generating a great

Question

(Multiple Choice Question):

The left atrium is damaged and is generating a great resistance to blood coming from pulmonary vein. What happens due to this pressure?

A) Back up of blood causing a subsequent back flow of blood into the inferior vena cava

B) Back up of blood into the pulmonary artery causing a generation of coronary artery edema

C) Back up of blood into the pulmonary vein causing blood to leave the capillaries in the right atrium

D) Back up of blood into the pulmonary vein causing blood to leave the capillaries in the lungs

Explanation / Answer

OPtion D: D) Back up of blood into the pulmonary vein causing blood to leave the capillaries in the lungs

The four Pulmonary veins carry oxygeneted blood from lungs and drain blood into left atrium of heart.

Left atrium functions as blood holding chamber for blood rturning from lungs and distribute to other parts of the heart.

Inferior vena cava receive deoxygenated blood from lower part of heart and deliver to right atrium of heart. So inferior vena cava and right atrium has no role here with left atrium damage.

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