Anatomy & Physiology Cardiac #12

Question

Which is the correct pathway for blood through the heart for systemic circulation to occur?

Answers

  1. Left atrium, left atrioventricular valve, left ventricle, pulmonary valve, pulmonary artery, lungs.
    • Rationale:

      This is not the pathway that blood travels through the heart for systemic circulation to occur.

  2. Lungs, pulmonary vein, left atrium, left atrioventricular valve, left ventricle, aortic valve, aorta, body.
    • Rationale:

      Systemic circulation begins in the lungs where oxygenation occurs. This is the correct pathway for which oxygen-rich blood travels through the heart for distribution to the rest of the body.

  3. Lungs, pulmonary artery, pulmonary valve, right ventricle, right atrioventricular valve, right atrium.
    • Rationale:

      While systemic circulation begins in the lungs, this is not the correct pathway that blood travels through the heart.

  4. 4. Right atrium, right atrioventricular valve, right ventricle, pulmonary valve, pulmonary artery, lungs.
    • Rationale:

      This is not the pathway that blood travels through the heart for systemic circulation to occur.

Overview

Systemic circulation moves oxygenated blood to the rest of the body.

Explanation

Learning Outcomes

The systemic circulation pathway begins after the pulmonary artery carries the oxygen-poor blood into the lungs for oxygenation. Once the blood is oxygen-rich, it must travel back through the heart for systemic distribution to the rest of the body. The pathway that blood travels once oxygenated is as follows: lungs, pulmonary vein, left atrium, left atrioventricular valve, left ventricle, aortic valve, aorta, body.

Test Taking Tip

Consider both the structure and the function of the heart to answer this question correctly.

Video Rationale