Across
- 4. What red blood cells use for energy in the place of a mitochondria. (7)
- 5. The muscle that is controlling the major action in a contraction. (7)
- 7. The protective sheath of the muscle. (10)
- 8. Type of muscle fibres that fatigue easily. (4,5)
Down
- 1. One of the filaments that cause muscle contraction. (6)
- 2. Scientific name for a front-line white blood cell. (10)
- 3. How white blood cells move throughout the body. (13)
- 6. The strongest muscle in the body. (5)
- 9. What connects the muscle to the bone. (6)
- 10. The type of muscle that moves involuntarily. (7)