Cardiovascular system Medical Term

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Across
  1. 4. The lower chambers of the heart responsible for pumping blood throughout the body.
  2. 7. System The system of the body composed of the heart, blood vessels, and blood.
  3. 10. Membranous sac that surrounds and encloses the heart.
  4. 11. The inner lining of the heart.
Down
  1. 1. The muscular middle layer of the heart.
  2. 2. Veins Blood vessels that remove waste products from the heart muscle.
  3. 3. Valve Heart valve controlling the opening between the right atrium and right ventricle that has three cusps.
  4. 5. The external layer of the heart.
  5. 6. Muscular organ that provides the power to maintain blood flow.
  6. 8. Arteries Blood vessels that supply oxygen-rich blood to the heart muscle.
  7. 9. The upper chambers of the heart through which all blood enters.