Muscular System

4. Respiration in which oxygen is consumed and glucose is broken down entirely
7. A process in which glucose is broken down in the absence of oxygen
13. The thin connective tissue surrounding each muscle cell
14. Chemical released by neurons that bind to receptors of neurons, and stimulate them
16. Inability of a muscle to contract even while be stimulated
18. The muscle attachment that is not movable or is less moveable than the intersection
20. Contractile proteins found in muscle; makes up the thin filaments
21. Consisting of spindle-shaped, nonstriated muscle cells
23. The movable attachment of a muscle as opposed to its origin
24. Muscle that performs the paired and opposing action of the agonist

1. Sustained partial contraction of a muscle in response to stretch receptor inputs
2. The smallest contractile unit of muscle
3. Muscle that increases the angle at the joint
5. Contractile organelles found in the cytoplasm of muscle cells
6. The connective tissue enveloping bundles of muscle fibers
8. Specialized muscle of the heart with striations
9. Movement that decreases the angle of a joint
10. Allows us to move
11. A motor neuron and all the muscle cells it supplies
12. Contractile proteins found in muscle; makes up the thick filaments
15. Attaches skeletal muscle to the skeleton
17. Muscles that assist the prime mover in its role
19. Organ system consisting of skeletal muscles and their connective tissue attachments
20. Muscle that contracts to generate the main force of an action
21. Muscle composed of cylindrical multinucleate cells with obvious striations
22. Act to keep bones immobile when needed