heart

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Across
  1. 2. Organ pumping blood throughout the body.
  2. 4. Vein Blood vessel carrying oxygenated blood from the lungs to the heart.
  3. 8. Upper chamber of the heart receiving blood.
  4. 9. Cava Largest vein in the body, carrying deoxygenated blood to the heart.
  5. 11. Tiny blood vessel where gas exchange occurs.
Down
  1. 1. Blood vessel carrying blood away from the heart.
  2. 3. Liquid component of blood containing water, proteins, and other solutes.
  3. 4. Artery Blood vessel carrying deoxygenated blood from the heart to the lungs.
  4. 5. Lower chamber of the heart pumping blood to the body and lungs.
  5. 6. Structure regulating blood flow within the heart.
  6. 7. Blood vessel carrying blood back to the heart.
  7. 10. Fluid transporting nutrients and oxygen to cells.