Across
- 2. _______ contraction coupling
- 6. constant muscle tension with no change in length
- 8. thick filament is made up of _____
Down
- 1. voltage _____ channels open
- 3. _______ enters, releasing acetylcholine
- 4. _____ changes its shape to expose binding sites
- 5. opposite of antagonist
- 7. tends to be proximal