Across
- 2. the smallest blood vessels
- 3. the name for the four muscles at the front of the thigh
- 4. the part of the blood which allows clotting to occur
- 9. a blood vessel with valves
- 10. where gaseous exchange takes place
- 11. another word for heart rate
- 13. the type of muscle action when 2 muscles work together to produce movement
- 14. a range of movement
- 15. the large muscle separating the chest from the stomach
- 18. the gas muscles need to work efficiently
Down
- 1. the alternative name for the windpipe
- 5. an organ attached to the ribs
- 6. what the body does during exercise to get rid of excess heat
- 7. the longest bone in the leg
- 8. a type of joint in the body
- 12. the muscle that causes the elbow to bend
- 13. - respiration without oxygen
- 16. the largest artery in the body
- 17. one of the 5 functions of the skeleton