Muscular System

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Across
  1. 9. Holds body upright against gravity and maintains balance
  2. 11. Forearm and palm are turned inward
  3. 12. Pointing the toes downward
  4. 13. Bundle of muscle fibers
  5. 14. byproduct of muscle activity and maintains body temperature
  6. 16. Functional unit of muscle fibers; made of actin & myosin
  7. 17. Pulling a structure away from the midline
  8. 18. Forearm and palm are turned outward
  9. 19. The cell membrane
  10. 20. Thin filament
  11. 21. Stores calcium ions needed for contraction
  12. 22. The primary function of skeletal muscles to produce movement
Down
  1. 1. Transporting substances like blood or food from one part of the body to another
  2. 2. Electrical current generated by change in charge
  3. 3. Increasing an angle between two parts
  4. 4. Decreasing an angle between two parts
  5. 5. Returns muscle fiber to resting state
  6. 6. Attaches a muscle to a bone
  7. 7. Pulling toes up toward shin
  8. 8. Thick filament
  9. 10. Provides energy for muscle contraction
  10. 15. Neurotransmitter responsible for muscle contraction
  11. 17. Pulling a structure back towards the midline