Muscle Fiber Crossword puzzel

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Across
  1. 5. increase in the size of cells, tissue, or organs in your body
  2. 6. use oxygen to produce energy
  3. 7. chemical your body produces when your cells break down carbohydrates for energy
  4. 8. training can trigger the formation of more extensive capillary networks around the fiber
  5. 9. source of energy for use and storage at the cellular level
  6. 10. create ATP through anaerobic, which produces less ATP per cycle
  7. 13. Occurs with malnutrition, age, genetics, a lack of physical activity or certain medical conditions
  8. 14. fibers contract relatively slowly
  9. 15. powerhouse of the cell
  10. 16. involuntary muscles
Down
  1. 1. fibers that fatigue more quickly than the others
  2. 2. does not use oxygen to produce energy
  3. 3. loss of muscle and strength that can happen when someone gets older and does less physical activity
  4. 4. provides quick bursts of ATP to muscles in the initial stages of contraction
  5. 11. voluntary muscles
  6. 12. responsible for the pumping of the heart