Which of these vessels carries deoxygenated blood from the heart? a. the aorta  b. none of the above c. the pulmonary artery  d. the pulmonary vein

To determine which vessel carries deoxygenated blood from the heart, let's analyze each option:

1. The Aorta - This vessel carries oxygenated blood from the heart to the rest of the body. Therefore, it does not carry deoxygenated blood.

2. None of the Above - This option implies that none of the listed vessels carry deoxygenated blood. We need to evaluate the other options before concluding.

3. The Pulmonary Artery - This is the vessel that carries deoxygenated blood from the right ventricle of the heart to the lungs for oxygenation.

4. The Pulmonary Vein - This vessel carries oxygenated blood from the lungs back to the left atrium of the heart. Thus, it does not carry deoxygenated blood.

Final Answer

The correct answer is c. the pulmonary artery.