Question Detail
Question
De-oxygenated blood from the vena cava enters which chamber of the heart first?
Correct Answer
Option C is the correct answer.
Detailed Explanation
Deoxygenated blood from the superior and inferior vena cava enters the right atrium first. From there, it passes through the right atrioventricular valve into the right ventricle.
Hint
Follow the path of deoxygenated blood returning from the body.