Across
- 4. blood clots help to them
- 5. digestive glands that produces enzymes and hormones
- 7. cells that are responsible for taking oxygen to every cel
- 9. place where blood cells are produced
- 10. a joint in an elbow
- 11. function of a skeleton
- 15. breaking down food into small molecules
- 16. the strongest part of human body, part of external tooth
Down
- 1. important muscle that bends our arm
- 2. process of gas exchange
- 3. process that takes place in mitochondrium
- 4. part of both digestive and breathing systems
- 6. important role of a skin
- 8. the longest bone in the upper arm
- 11. type of joint in a neck
- 12. type of tooth well developed in predators
- 13. a bone in a lower leg
- 14. part of a skin in which blood capillaries and sweat glads are present
- 17. breathing organ