The Circulatory System

Name: ______________________   Date: ____________

Use the clues to fill in the crossword.

Across

  1. 1. Red liquid pumped around the body by the heart (5)
  2. 3. The entire physical structure of an organism (4)
  3. 7. Force pushing on something (8)
  4. 10. Organ that pumps blood around the body (5)
  5. 11. A heavy odorless colorless gas formed during respiration and by the decomposition of organic (13)
  6. 12. The rate at which the heart beats (5)
  7. 13. Any substance that can be taken in by a green plant and used in organic synthesis (plural) (9)
  8. 15. An enclosed volume in the body (plural) (8)
  9. 16. A blood vessel that carries blood from the capillaries toward the heart (plural) (5)

Down

  1. 2. Gas in the air that we need to breathe (6)
  2. 4. Of or relating to ___ (11)
  3. 5. Any of the minute blood vessels connecting arterioles with venules (plural) (11)
  4. 6. A chamber of the heart that receives blood from an atrium and pumps it to the arteries (9)
  5. 8. A mature ___ ___ that contains hemoglobin to carry oxygen to the bodily tissues (plural) (13)
  6. 9. A blood vessel that carries blood from the heart to the body (plural) (8)
  7. 14. Instrumentality that combines interrelated interacting artifacts designed to work as a coherent (6)