Across
- 1. Name for thick myofilaments
- 3. What activates tropomyosin
- 7. Specialized smooth endoplasmic reticulum
- 8. Where action occurs in the sarcomere
- 9. Covers each muscle fiber
- 10. Another name for muscle cell
- 11. Where myosin is anchored
- 12. Line where actin molecules attach to each other
- 14. Bundles of thick and thin myofilaments
- 16. Which part of myosin acts on actin?
- 17. 2 Terminal cisterna + 1 T Tubule = ___
- 18. Smallest functional unit of skeletal muscle fiber
- 19. Allows for electrical stimulate to reach each fiber
Down
- 2. Name for muscle fiber cytoplasm
- 4. What actin molecules are “hidden” under when not activated
- 5. Name for thin myofilaments
- 6. Where a motor neuron
- 7. Special name for the muscle fiber plasma membrane
- 13. Covers the entire muscle
- 15. Divides and covers the muscle into bundles