Body Systems

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Across
  1. 2. A contraction when the muscle is held still
  2. 3. Fibers that transport signals in a nerve cell
  3. 6. The smallest air sacks in the lungs
  4. 10. Moving the shoulders in a forward direction
  5. 13. What determines the distribution of our fibre types
  6. 14. Where the air goes through to get into the lungs
  7. 15. Another name for the voice box
Down
  1. 1. When the palm is anterior
  2. 4. A bundle of structures, such as nerve or muscle fibres or conducting vessel
  3. 5. A joint that allows movement in two ways but not rotation
  4. 7. What carries blood too the heart
  5. 8. A bone with a complex structure
  6. 9. The type of twitch used in weightlifting
  7. 11. The amount of atriums in the heart
  8. 12. The flexion of pointing the foot downward