Muscular System Crossword

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Across
  1. 2. The flattened end of a motor neuron that transmits neural impulses to a muscle
  2. 4. The "middle" of a sarcomere that holds the myosin in place
  3. 6. Stiffness of the body that sets in several hours after death due to no ATP and build up of Calcium.
  4. 8. Thick filaments
  5. 9. A structure that sends an impulse to a muscle or gland, causing the muscle or gland to react
  6. 16. The main energy source that cells use for most of their work
  7. 17. Continuous, forceful muscular contraction without relaxation.
  8. 18. Connective tissue surrounding a muscle fiber.
  9. 20. Thin filaments
  10. 21. Attachment of a muscle tendon on a stationary bone.
  11. 22. The region at the center of an A band of a sarcomere that is made up of myosin only.
  12. 23. Involuntary waves of muscle contraction that keeps fluids moving throughout the body.
  13. 25. The ends of a sarcomere where actin extends from.
  14. 31. A neurotransmitter that triggers muscle contraction.
  15. 32. Bundles of muscle fibers.
  16. 33. The muscle that is doing the majority of the movement.
  17. 34. The tightening/shortening of a muscle.
Down
  1. 1. The connective tissue that separates muscle into bundles of fascicles.
  2. 3. The muscle that resists the action of the prime mover.
  3. 5. A sheath of fibrous elastic tissue surrounding the skeletal muscle.
  4. 7. The attachment of a muscle tendon to a moveable bone.
  5. 9. Skeletal, smooth, cardiac
  6. 10. Muscle enlargement from overuse.
  7. 11. Inability of muscle to maintain its strength of contraction or tension.
  8. 12. Plasma membrane of a muscle cell.
  9. 13. Tubule channels that pass through the core of a muscle fiber to transport calcium and ATP
  10. 14. Chemical messengers that cross the synaptic gaps between neurons.
  11. 15. The muscle that aids a prime mover in a movement.
  12. 19. The region that contains the Z line that is made up of actin only.
  13. 24. Cytoplasm of a muscle cell.
  14. 26. A product of anaerobic respiration that builds up in the muscles and makes them sore.
  15. 27. A band or sheet of fibrous connective tissue that covers, supports, and separates muscle
  16. 28. Loss of muscle bulk due to muscle disease, nervous system disease, or lack of use.
  17. 29. The dark area; contains overlapping actin and myosin
  18. 30. When a muscle returns to its original form.