Muscles

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Across
  1. 4. segment of myofibril between two successive Z lines, unit of muscle contraction
  2. 5. when simple twitches come in rapid succession
  3. 8. skeletal muscle fibers are organized into bundles called ____
  4. 9. thin filaments of contractile protein inside the cell.
  5. 10. maxiumum, sustained muscle contraction.
  6. 11. A neurotransmitter that enables learning and memory and also triggers muscle contraction
  7. 12. thick filaments of contractile protein inside the cell.
Down
  1. 1. equal tension on all muscles used to lift a load
  2. 2. load is too great - must strain to lift, tension is not equal
  3. 3. turning palms upward or lying on back facing up
  4. 5. another name for the muscle cell membrane
  5. 6. connective tissue that attaches bone to bone (usually)
  6. 7. connective tissue that attaches muscle to bone
  7. 9. reduction of muscle size - no stimulation (MS patients)
  8. 11. ligament that attaches muscle to muscle ex: 6 pack abs