Muscle Physiology

3. bundle of muscle cells surrounded by perimysium
6. point of contact between a motor neuron and a skeletal muscle cell (abbr.)
8. a motor neuron and all of the muscle fibers it innervates
9. muscle cell membrane
12. skeletal muscle is mainly comprised of _____.
15. name of enzyme that rapidly decomposes ACH
17. when the release of ACH from a neuron increases permeability to Na+ and raises membrane potential (abbr.)
18. the idea that the greater amount of work performed by the muscle, the greater amount of ATP that is cleaved is called the ____ effect.
19. defined as where the t-tubule and two terminal cisternae meet
20. slow and cardiac muscle have this many binding sites for Ca2+ on TnC

1. main protein in the light filament
2. this quality is reflected in the I band; when light is equally scattered through
4. the basic contractile unit
5. the "G" in G-actin stands fir
7. capacity of skeletal muscle for adaptive change
10. highest resolution viewing type for muscle typing
11. protein attached near the end of the tropomyosin molecule
13. the troponin protein has this many subunits
14. name of the neurotransmitter involved in muscle excitation
16. large protein complex that is the release channel of the SR