Muscular System

3. cell energy generation that occurs when there is an inadequate supply of oxygen in the cell
7. muscles that open joint wider (2 words)
10. the way eyes move during sleep
11. pairs of muscles that act to pull a bone in opposite directions (2 words)
13. muscle that closes the mouth and keeps it closed
14. this muscle connects to the back of the pelvis and the femur (2 words)
15. occurs when tendons are overused and become inflamed
19. another word for skeletal muscles, you can think and control them
20. type of action where muscles move involuntarily
21. cellular waste product created when energy is produced anaerobically (2 words)

1. this attaches the calf muscle to the heel bone (2 words)
2. connect skeletal muscles to the bones
4. muscles that close the joints (2 words)
5. when a muscle is underused and becomes weak and shrinks
6. strands of protein inside skeletal muscle cells
8. muscle type that forms most of the heart
9. small strips of protein located inside each myofibril
12. type of energy production that requires oxygen
16. the type of muscle that is attached to and moves your bones (2 words)
17. sugar that the human body turns certain foods into, used to make energy to power muscle cells
18. tone this is produced when muscles are partly contracted (2 words)