PE Crossword

7. Where two or more bones meet to allow movement at a joint
8. The number of times the heart beats (usually measured per minute).
9. Air sacs in the lungs.
10. The pain felt in the muscles the day after exercise.
11. volume x heart rate.
12. pressure) in the atria and ventricles (see Heart chambers).
13. Muscle or group responsible for the movement. It can also be called the 'prime mover'.

1. The flowing backwards of blood. Valves in the veins prevent this from happening.
2. They include the right and left atria and ventricles
3. The ability to meet/cope with the demands of the environment.
4. The amount of blood ejected from the heart in one minute
5. Acts to produce the opposite action to the agonist. They work in antagonistic
6. The process of the heart going through the stages of systole and diastole (see