Muscular System

1. striated muscles of the heart that contract involuntarily to pump blood throughout the body
7. organelle that makes up most of the muscle cells
10. where the axon terminals of the major neuron meet the muscle fiber, including the space between them
13. what do muscles have to do in order to produce movement
15. where the muscle is attached to an immovable bone
16. muscle that oppose or do the reverse of a certain movement
17. non-striated muscles in the walls of visceral organs that contract involuntarily to propel objects down internal passageways
18. surrounds each fascicle(type of connective tissue)
19. wraps around the entire outside of the muscle(type of connective tissue)

2. where the muscle is attached to a movable bone
3. muscle fibers bundle together to form
4. thin filaments that run the length of each myofibril
5. striated muscles are generally attached to bones that contract voluntarily to produce movement
6. surrounds each muscle fiber(type of connective tissue)
8. muscles that help the prime mover, such as stabilizing across a joint or adding some "oomph"
9. main function of the muscular system
11. known as the abdominal muscles
12. the contractile unit of the muscle
14. muscles are most responsible for producing a certain movement