Which type of blood vessel carries blood back to the heart?

Understand the Problem
The question asks which type of blood vessel carries blood back to the heart, requiring knowledge of circulatory system anatomy.
Answer
D. Veins
The answer is D. Veins carry blood back to the heart.
Answer for screen readers
The answer is D. Veins carry blood back to the heart.
More Information
Blood vessels are a vital part of the circulatory system, transporting blood throughout the body. Veins have valves to prevent backflow, ensuring blood moves towards the heart.
Tips
A common mistake is confusing arteries and veins. Remember, arteries carry blood away from the heart, while veins carry blood back to the heart.
Sources
- Blood Vessels: Types, Function & Anatomy - Cleveland Clinic - my.clevelandclinic.org
- About the Heart and Blood Vessels - stanfordchildrens.org
- How the Heart Works - How Blood Flows through the Heart - NHLBI - nhlbi.nih.gov
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