Mighty Muscles Crossword Puzzle

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Across
  1. 1. Muscles that contract without direct stimulation from the nervous system
  2. 2. Shape of smooth muscles
  3. 4. Thin filaments in a muscle cell
  4. 8. A type of neurotransmitter
  5. 10. Muscles that are attached to bones
  6. 11. Stomach muscles
  7. 14. Ankle tendon
Down
  1. 1. Muscle cells are specialized for -
  2. 3. Skeletal muscles work in -
  3. 5. Skeletal muscles have more than one
  4. 6. Energy molecule
  5. 7. Upper arm muscle
  6. 9. Myosin and actin form these between each other
  7. 12. Thick filaments in a muscle cell
  8. 13. Type of spindle-shaped muscle