BIO 133. Chapter 6

2. recording of muscle activity.
7. forms thick filaments.
10. a molecule that provides a rapid source of energy for muscle contractions.
11. the muscle changes length while the tension remains constant.
13. specialized tissues composed of elongated cells called muscle fibers that have the ability to contract and produce movement.
14. contain proteins actin and myosin.
15. contractile unit of myofibrils.

1. muscles that work together to create the same movement.
3. Neurotransmitter that play a critical role in muscle movement, memory, attention, and arousal, and also influences heart rate, digestion, and more.
4. forms thin filaments.
5. A serious bacterial infection that affects the nervous system, leading to painful muscle spasms.
6. bundles of muscle fibers wrapped with connective tissue.
8. muscles that oppose each other to create a movement.
9. a protein found in heart and skeletal muscle cells that plays a crucial role in muscle contraction.
12. help you maintain a stable position.