Nokea
Which heart chamber ejects blood into the systemic arterial circulation via the aorta?
Correct Answer: D
Rationale: The correct answer is D, Left ventricle. The left ventricle is responsible for ejecting oxygenated blood into the systemic arterial circulation via the aorta. It receives oxygen-rich blood from the left atrium and pumps it out through the aorta to the rest of the body.
Rationale:
1. The left ventricle receives blood from the left atrium, which has already been oxygenated in the lungs.
2. It is the chamber that generates the highest pressure to propel blood into the systemic circulation.
3. The aorta is the main artery that carries oxygenated blood away from the heart to the body.
4. The right atrium and right ventricle are involved in pumping deoxygenated blood to the lungs for oxygenation, not into the systemic circulation.
5. The left atrium receives oxygenated blood from the lungs but does not directly eject blood into the systemic arterial circulation.