Across
- 3. neurotransmitter that starts muscle contraction
- 4. cell respiration without oxygen;___ glycolysis
- 6. space between neuron and muscle; synaptic _____
- 7. section of myofibril from 1 z disc to another
- 12. part of thin filament that binds to myosin
- 13. brings action potential into the muscle cell
- 15. blocks binding site on actin
- 16. superhero who has huge muscles when angry
- 17. muscle cell membrane
- 21. outermost connective tissue; surrounds muscle
- 22. helps create ATP: ____ phosphate
- 23. involuntary muscle found in the digestive tract
Down
- 1. overlapping patterns of actin & myosin; I and A __
- 2. connects muscle to bone
- 5. electrical signal; _______ potential
- 8. channels filled with Ca2+; sarcoplasmic ______
- 9. explains muscle contraction; sliding ___ theory
- 10. bundle of muscle fibers
- 11. connective tissue that surrounds fascicles
- 14. describes appearance of striped muscles
- 18. involuntary muscle found in the heart
- 19. thick filaments of muscle fiber
- 20. cell respiration that burns fat for energy aerobic _______