Across
- 5. found in blood vessels, intestines, muscles of inspiration, around blood vessels
- 11. muscles contract or shorten lengthwise
- 12. contain intercalated discs- help the muscle cells beat in sync
- 15. refers to muscle
- 16. end plate area on sarcolemma that contains acetylcholine receptors
- 18. nerve that sends the signal to the muscle to contract
- 19. powerhouse of cell
- 20. space between the nerve ending and the motor end plate of the muscle fiber.
- 22. a net
- 23. muscles are stimulated by electrical signals, such as nerve impulses
- 25. the ability of the muscle to stretch and return to its original length
- 26. muscle that aids the prime mover in the movement
- 27. the same
- 29. contains DNA
- 30. Includes involuntary actions such as heart contraction, movement of food through intestines
Down
- 1. standing still
- 2. the membrane
- 3. grouped together and wrapped in a membrane called perimysium
- 4. neurotransmitter that causes muscular contraction
- 6. muscle is metabolically active to produce heat
- 7. a cell
- 8. innate tension in a muscle that allows the muscle to regain its original shape after being stretched
- 9. net like structure
- 10. muscle that relaxes when the other contracts
- 13. muscle most responsible for the movement
- 14. one motor neuron and all the skeletal muscle fibers it innervates
- 17. tubes that run throughout the muscle
- 21. neurotransmitter that degrades ach and ends muscular contraction
- 24. decrease in body temperature results in involuntary spasms of skeletal muscle
- 28. study of muscle