Question

What aids in preventing the mixing of oxygen-rich and carbon dioxide-rich blood in the heart?

• A. Aortic valve
• B. Tricuspid valve
• C. The wall between the chambers
• D. Pulmonary valve

Answer 1

Answer:

C. The wall between the chambers

• A septum is a diving wall which is present between the the left side and the right side of the heart, which does not allow mixing of blood when oxygen-rich and carbon dioxide- rich blood reach the heart.

• Specifically:

• The interatrial septum separates the left and right atria (the upper chambers).

• The interventricular septum separates the left and right ventricles (the lower chambers).

• The primary function of this separation by the septum is to prevent the mixing of oxygen-rich (oxygenated) blood and carbon dioxide-rich (deoxygenated) blood as they pass through the heart.