muscular system

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Across
  1. 4. A system that helps with muscles
  2. 5. a large, thick muscle on the dorsal part of the upper arm
  3. 7. the large, fleshy muscles of the buttocks
  4. 9. a group of three muscles that run along the back of your thigh from your hip to just below your knee.
Down
  1. 1. a muscle of the thigh that extends the leg
  2. 2. any skeletal muscle having two origins
  3. 3. a tissue of the body consisting of long cells that can contract and produce motion.
  4. 5. a group of cells that have similar structure and that function together as a unit
  5. 6. the soft substance consisting of muscle and fat that is found between the skin and bones
  6. 8. the hamstring of a quadruped