Anatomy & Physiology Cardiac #13

Question

Which is the only vein within the circulatory system that carries freshly oxygenated blood to the heart?

Answers

  1. Jugular vein
    • Rationale:

      The jugular vein does not carry freshly oxygenated blood to the heart.

  2. Pulmonary vein
    • Rationale:

      The only vein within the human body that carries freshly oxygenated blood is the pulmonary vein. This vein carries the blood from the lungs to the heart.

  3. Inferior vena cava
    • Rationale:

      The inferior vena cava is a large vein that carries blood from the lower portion of the body to the heart; however, the blood is not freshly oxygenated.

  4. Superior vena cava
    • Rationale:

      The superior vena cava is a large vein that carries blood from the upper portion of the body to the heart; however, the blood is not freshly oxygenated.

Overview

A vein is defined as a tube that carries blood toward the heart. forming part of the blood circulation system of the body, carrying in most cases oxygen-depleted blood toward the heart.

Explanation

Learning Outcomes

Most veins in the body carry oxygen-depleted blood toward the heart. There is one exception to this rule, the pulmonary vein. This vein carries freshly oxygenated blood from the lungs to the heart for distribution to the rest of the body.

Test Taking Tip

Consider the location of each vein to determine the correct answer for this question.

Video Rationale