Chapter 7 Vocabulary

5. assists the primary mover for a specific action at a joint.
7. synaptic connection between a motor neuron and skeletal muscle.
10. flexible end of the muscle, usually attached to a bone
11. Term for without oxygen
12. attachment site that doesn’t move during contraction
13. no relaxation period between muscle contraction
15. Protein located primarily in the striated muscles of vertebrates.
16. the muscle that provides the primary force driving the action
17. network of interconnecting rings, each surrounds a myofibril
18. first step in the breakdown of glucose to extract energy
19. Organized structures in muscle cells that have proteins actin and myosin.

1. made of contractile proteins that are responsible for skeletal muscle contraction
2. chemical your body produces when cells break down carbohydrates for energy.
3. contraction in which there is no chance in length of the muscle
4. fibrous connective tissue that attaches muscle to bone
6. specialized form of endoplasmic reticulum of muscle cells
8. attachment of myosin with acting within the muscle cell
9. maintains constant tension in the muscle as the length changes.
14. single motor neuron and the multiple muscle fibers it controls.