APP Muscular System

4. type of muscle that's striated, or skeletal muscles controlled by will
5. the smallest functional unit of the muscle fiber
6. type of muscle found only in the heart
8. responsible for locomotion and motor functions like breathing, moving fluids, etc
11. a network of membranous channels within the muscle cells, releasing calcium ions, causing contraction
12. the ability to shorten and exert force
14. divides the body horizontally into upper and lower portions
16. the ability of the muscle to stretch
17. the cell membrane of the muscle found beneath the connective tissue layer

1. extends inward from the epimysium and splits the muscles into bundles of fibers and fascicles
2. a connective tissue covering which maintains a muscle's parallel position with other cells
3. the connection point for the motor nerve and the muscle cell
7. the capacity to receive and react to stimuli
9. a protein that forms 50% of filaments in the muscle tissue
10. the ability for a muscle to return to its original shape after contraction or stretching
13. a type of muscle that is smooth and is controlled by the autonomic nervous system
15. a protein that forms filaments that interact with myosin
16. the layer of fascia that closely covers an individual muscle