Anatomy Chapter 8 Crossword

3. more moveable end of the muscle
8. corresponds to the endoplasmic reticulum of other types of cells
10. an increase in the number of motor units being activated during contraction
12. is synthesized in muscle cells and impacts the reddish-brown color of skeletal muscle tissue
13. muscle that works with an agonist to produce a movement
15. the less movable end of the muscle
16. near the region where the thick and thin filaments overlap
17. separates the membrane of the neuron and the membrane of the muscle fiber
21. stimulate muscle fibers to contract
22. a response to nervous stimulation that originates repeatedly from the spinal cord and stimulates only a few muscle fibers at a time
23. muscle cells that are separate rather than organized into sheets
24. attach to bone, skin, or to the connective tissue of adjacent muscle
25. dissociates rapidly to form lactate ion and hydrogen ion

1. refers to an agonist that provides most of the force for a movement when more than one muscle contributes
2. are neurons communicating with the cells that they control by releasing chemicals
4. the protein responsible for the red color of blood
5. enlargement of muscle fibers
6. the contractile response of a single muscle fiber to a single impulse
7. separates an individual skeletal muscle from adjacent muscles and holds it in position
9. released from the distal end of a motor neuron axon stimulates a skeletal muscle fiber
11. composed of sheets of spindle-shaped cells in close contact with one another
14. is the opposing ends of cardiac muscle cells that are connected by structure
18. sustained muscular contraction
19. contractile structure within a muscle cell
20. helps force the contents of certain tubular organs along their lengths