Cardiovascular System Worksheet
A worksheet for 8th-grade science students to test their knowledge of the human cardiovascular system.
Includes
Standards
Topics
Cardiovascular System
Name:
Date:
Score:
Read each question carefully and answer to the best of your ability.
1. Which of the following is NOT a main component of the cardiovascular system?
Heart
Blood vessels
Lungs
Blood
2. What is the primary function of red blood cells?
Fighting infection
Clotting blood
Transporting oxygen
Producing hormones
3. The human heart has chambers.
4. Arteries carry blood from the heart, while veins carry blood the heart.
5. The main artery that carries oxygenated blood from the heart to the rest of the body is the .
6. Platelets are responsible for carrying oxygen in the blood.
True
False
7. The pulmonary artery carries oxygen-rich blood to the lungs.
True
False
8. Briefly explain the difference between systemic circulation and pulmonary circulation.
9. Label the main parts of the heart in the diagram below.

A. B.
C. D.
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