BODY QUIZ

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Across
  1. 4. an eating disorder which starts with the letter "a"
  2. 7. tissue that contains fat cells
  3. 8. line the remnant of the young growing bones in the bone
  4. 11. inactive form of fibrin
  5. 14. chemical substances found in food, build the human body
  6. 17. a red blood cell
  7. 18. where does the gas exchange occur?
  8. 19. animal tissue
  9. 21. a tube located in the beginning of the digestive system
Down
  1. 1. the control center of heat management
  2. 2. a part of the intestine, located in the beginning of the intestinal track
  3. 3. cell shape which resembles pavement
  4. 5. separates the trachea and esophagus
  5. 6. process of bone growth
  6. 7. an essential amino acid which starts with the letter "a"
  7. 9. large tissue which supports the digestive track
  8. 10. a cell of which the alveoli wall is composed
  9. 12. enzyme secreted by the liver
  10. 13. matrix medium of the cell, can be liquid, solid, jellylike
  11. 15. red/yellow bone ...
  12. 16. movement of air into and out of the lungs
  13. 20. oblongata respiratory control center