Across
- 2. increasing force production by quick, repeated stimulation of a given motor unit
- 3. binds to troponin
- 5. type of contraction when the muscle is lengthening
- 9. neurotransmitter that stimulates a muscle fiber
- 10. filament wrapped around actin covering binding sites at rest
- 14. increasing force production by activating more motor units
- 15. type of fiber that is very aerobic (no spaces)
- 16. product of glycolysis that can lead to muscular fatigue (no spaces
- 19. an automatic, preprogrammed response to a specific stimulus
- 20. connective tissue surrounding a single muscle fiber
- 22. type of fiber that is powerful but easily fatigued (no spaces)
Down
- 1. type of contraction performed doing a typical bench press exercise
- 2. the contractile unit of a muscle
- 4. organelle that produces large amounts of ATP
- 6. dividing lines for contractile units of a myofibril
- 7. the cell membrane for a muscle fiber
- 8. type of contraction when the muscle is shortening
- 10. brings the depolarization from the surface down into the fiber
- 11. type of neuron that stimulates a muscle fiber
- 12. connective tissue surrounding a bundle of fibers
- 13. the thin filament in a myofibril
- 17. resevoir for calcium in muscle fiber
- 18. type of contraction that yields no movement
- 20. connective tissue covering the entire muscle
- 21. the thick filament in a myofibril