Practice Test

What are the primary roles of the pulmonary veins in the circulatory system?

Incorrect

Correct Answer(s): B, C

A. Connect the right atrium to the lungs [9%]

B. Transport oxygen-rich blood to the heart [45%]

C. Connect the left atrium to the lungs [35%]

D. Transport deoxygenated blood to the lungs [11%]

Difficulty Level: MEDIUM

54% of peers got it right

Time taken - 75 s

Subject: Anatomy and Physiology Lesson: 5.1.3 - Cardiovascular System

Explanation

Correct Answers: B and C

B is correct: The pulmonary veins transport oxygen-rich blood from the lungs to the left atrium of the heart. This oxygenated blood is then pumped to the rest of the body, making this a key function of the pulmonary veins.
C is correct: The pulmonary veins do not connect the right atrium to the lungs. The right atrium receives deoxygenated blood from the body and sends it to the right ventricle, which pumps it to the lungs through the pulmonary arteries.
D is incorrect: Deoxygenated blood is transported to the lungs by the pulmonary arteries, not the pulmonary veins. Pulmonary veins exclusively carry oxygen rich blood from the lungs to the heart.

Describe the function and anatomical connections of the pulmonary veins within the circulatory system.