Muscular System
Across
- 4. Neurotransmitter that stimulates a skeletal muscle fiber
- 5. Imparts the reddish-brown color of skeletal muscle tissue
- 7. Extend inward from the epimysium and separate the muscle tissue into fascicles
- 9. The functional connection between a neuron and another cell
- 10. Increase in the number of motor units being activated during a contraction
- 12. Dense connective tissue that separates an individual skeletal muscle from adjacent muscles and holds it in position
- 14. Bundles of skeletal muscle fibers
- 15. Enlarged portions of the sarcoplasmic reticulum
Down
- 1. Layer of connective tissue that closely surrounds each skeletal muscle
- 2. Striations of skeletal muscle result from a repeating pattern
- 3. Broad fibrous sheets that may attach to bone, skin, or to be the connective tissue of adjacent muscles
- 6. Connect the opposing ends of cardiac muscles
- 8. Layer of connective tissue that allows parts to move somewhat independently
- 11. Play a fundamental role in muscle contraction and have to kinds of protein filaments
- 13. Protein responsible for the red color of blood