Muscles

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Across
  1. 1. collagen fibers of the epimysium continue as a strong fiber that attaches the muscle to a bone
  2. 2. extension of the sarcolemma that extends into the muscle fiber
  3. 4. cytoplasm of a muscle fiber that contains organelles, including myofibrils
  4. 6. located in the walls of hollow internal organs and blood vessels
  5. 7. a layer of fibrous tissue that separates muscles from each other
  6. 10. when a muscle decreases in size
  7. 11. muscle on a stationary bone
  8. 12. usually provides most of a muscle's ATP
  9. 13. bundles of muscle fibers
  10. 15. apparent when the muscle relaxes even though stimulation continues
  11. 16. a high energy compound built up when a muscle is resting
  12. 18. incurred when a muscle uses fermentation to supply its energy needs
  13. 19. thick and thin filaments whose structure and function account for muscle striations and conractions
  14. 20. uninucleated, striated, cylindrical, and branched. forms the heart wall
  15. 23. consists of the motor nerve axon and the muscle fibers it contacts
  16. 24. connective tissue layer that covers the muscle itself
  17. 25. occurs as dying muscle cells deplete their last ATP reserves
  18. 26. the deep fascia that surrounds a group of several muscles
  19. 27. voluntary muscle; fibers are cylindrical, multinucleated, and striated
  20. 30. a muscle fiber contracts completely or not at all
  21. 31. a red pigment that stores oxygen for muscle contraction
  22. 32. one of the deadliest toxins known to mankind; injected daily by doctor's offices, hospitals, and clinics around the country
  23. 33. anaerobic process that produce the ATP necessary for short bursts of exercise, but accumulates lactic acid as a product
Down
  1. 1. maximal sustained contraction
  2. 3. plasma membrane of a muscle fiber that forms T tubules
  3. 5. increased muscle contraction until maximal sustained contraction
  4. 8. the smooth ER of a muscle fiber that stores Ca2+
  5. 9. a single contraction that lasts only a fraction of a second
  6. 14. a polysaccharide that stores energy for muscle contraction
  7. 17. sheath of connective tissue
  8. 19. a nerve fiber together with all of the muscle fibers it innervates
  9. 21. phenomenon that results in stronger and stronger muscle contractions
  10. 22. swelling inside a compartment increases, choking off the blood supply to a muscle
  11. 28. thin layer of connective tissue that surrounds each muscle fiber
  12. 29. a bundle of myofilaments that contracts