Anatomy & Physiology Cardiac #6


Which structure receives blood from the lungs that is oxygen rich?


  1. Atria
    • Rationale:

      The atria is either of the two upper chambers of the cardiac muscle that receive blood from the veins and force it into the ventricles.

  2. Aorta
    • Rationale:

      The aorta is the main artery of the body. It supplies oxygenated blood to the circulatory system from the heart.

  3. Pulmonary vein
    • Rationale:

      The pulmonary vein is a structure that carries oxygenated blood from the lungs to the left atrium of the cardiac muscle.

  4. Pulmonary artery
    • Rationale:

      The pulmonary artery is a structure that carries oxygen-poor blood from the right ventricle of the heart to the lungs for oxygenation.


There are two circulatory pathways that move blood to, through, and from the cardiac muscle.


Learning Outcomes

The right side of the heart has the pulmonary circulation pathway which moves blood to the lungs for reoxygenation. The left side of the heart has the systemic circulation which moves oxygenated blood to the rest of the body. The pulmonary vein is the last structure involved in the pulmonary circulation pathway as it feeds oxygen-rich blood from the lungs to the heart.

Test Taking Tip

Consider the structure and function of each choice to determine the correct answer for this question.

Video Rationale