Muscle terminology crossword

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Across
  1. 1. corkscrew-shaped protein that composes collagen fibrils
  2. 4. the oxygen required by the body to metabolize lactic acid and replenish glycogen, creatine phosphate, and ATP stores after exercise
  3. 5. the breakdown of ATP in muscle produces this byproduct, which is why we shiver when we are cold
  4. 9. highly responsive to stimulation from the nervous system
  5. 10. able to rebound back to original shape and length
  6. 11. an acute involuntary muscle contraction that lasts for several minutes; palpable as a knot
  7. 13. inability to contract forcefully after prolonged activity
  8. 14. a broad, flat sheet of organized connective tissue that attaches a muscle to bone
  9. 15. muscles work together with ligaments and joint capsules to stabilize _______
  10. 17. the organized fibrous connective tissue that makes up tendons is composed of ________ packed collagen fibers
  11. 18. a nerve cell that stimulates multiple muscle fibers in a motor unit
  12. 19. a muscle contraction in which there is an increase in tension, but no change in length
Down
  1. 2. capable of forcefully shortening
  2. 3. an isotonic contraction in which the muscle produces tension while it is lengthening
  3. 6. the minimum stimulus required to produce a response
  4. 7. the type of contraction responsible for maintaining posture
  5. 8. communicating chemicals released from a neuron
  6. 10. able to lengthen
  7. 12. the region of a muscle fiber that is highly sensitive to neurotransmitters
  8. 16. type of fibrous connective tissue that makes up fascia