Muscular System Andrew Jennings

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Across
  1. 4. play a fundamental role in muscle contraction, composed of 2 types of protein, myosin and actin.
  2. 7. muscles that resist a prime mover muscle.
  3. 9. neurons that carry outgoing information from the central nervous system to the muscles and glands
  4. 12. the neurotransmitter released by the neuromuscular junction
  5. 16. shrinking of muscle size
  6. 17. skeletal and smooth muscles; are elongated; multiple nuclei
  7. 19. the fixed attachment of a muscle that serves as a basis for action
  8. 21. Voluntary, striated muscle that moves bones
  9. 22. a type of protein filament that interacts with actin filaments to cause cell contraction
  10. 24. an increase in the number of motor units being activated
  11. 29. Bundle of muscle fibers
  12. 30. a type of protein filament that interacts with actin filaments to cause cell contraction
Down
  1. 1. chemicals that transmit information from one neuron to another
  2. 2. an impulse, generated as a result of the stimulus, passes in all directions over the surface of the muscle fiber
  3. 3. Muscles you can control
  4. 5. increase in muscle size
  5. 6. the state of balanced muscle tension that makes normal posture, coordination, and movement possible
  6. 8. a condition in which a muscle shortens its length in the resting state and remains that way.
  7. 10. the smallest contractile unit of muscle: striations form a repeating of units along each muscle fiber.
  8. 11. the contractile response of a single muscle fiber to a muscle impulse
  9. 13. Muscle contractions that are not controlled
  10. 14. muscles that resist a prime mover muscle.
  11. 15. the junction where one neuron can transfer an impulse to another structure
  12. 18. a muscle that contracts without conscious control and found in walls of internal organs
  13. 20. muscle that aids a prime mover in a movement and helps prevent rotation
  14. 23. alternate dark and light bands found on skeletal and cardiac muscle
  15. 25. the muscle tissue of the heart
  16. 26. movable end of the muscle
  17. 27. A single neuron and all the muscle fibers it stimulates
  18. 28. a band or sheet of fibrous connective tissue that covers, supports, and separates muscle