Anatomy Chapter 8 Crossword

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Across
  1. 3. more moveable end of the muscle
  2. 8. corresponds to the endoplasmic reticulum of other types of cells
  3. 10. an increase in the number of motor units being activated during contraction
  4. 12. is synthesized in muscle cells and impacts the reddish-brown color of skeletal muscle tissue
  5. 13. muscle that works with an agonist to produce a movement
  6. 15. the less movable end of the muscle
  7. 16. near the region where the thick and thin filaments overlap
  8. 17. separates the membrane of the neuron and the membrane of the muscle fiber
  9. 21. stimulate muscle fibers to contract
  10. 22. a response to nervous stimulation that originates repeatedly from the spinal cord and stimulates only a few muscle fibers at a time
  11. 23. muscle cells that are separate rather than organized into sheets
  12. 24. attach to bone, skin, or to the connective tissue of adjacent muscle
  13. 25. dissociates rapidly to form lactate ion and hydrogen ion
Down
  1. 1. refers to an agonist that provides most of the force for a movement when more than one muscle contributes
  2. 2. are neurons communicating with the cells that they control by releasing chemicals
  3. 4. the protein responsible for the red color of blood
  4. 5. enlargement of muscle fibers
  5. 6. the contractile response of a single muscle fiber to a single impulse
  6. 7. separates an individual skeletal muscle from adjacent muscles and holds it in position
  7. 9. released from the distal end of a motor neuron axon stimulates a skeletal muscle fiber
  8. 11. composed of sheets of spindle-shaped cells in close contact with one another
  9. 14. is the opposing ends of cardiac muscle cells that are connected by structure
  10. 18. sustained muscular contraction
  11. 19. contractile structure within a muscle cell
  12. 20. helps force the contents of certain tubular organs along their lengths