Question

1. which of these shows the correct pathway through the heart’s four chambers after it enters from the vena cava? right ventricle -> left ventricle -> right atrium -> left atrium right ventricle -> right atrium -> left ventricle -> left atrium left ventricle -> right atrium -> left ventricle -> left atrium right atrium -> right ventricle -> left atrium -> left ventricle

Explanation:

Deoxygenated blood enters the heart from the vena cava into the right atrium first. It then moves to the right ventricle, which pumps it to the lungs for oxygenation. Oxygenated blood returns to the left atrium, then flows to the left ventricle to be pumped out to the body.

Answer:

right atrium -> right ventricle -> left atrium -> left ventricle