Muscular System

1234567891011121314
Across
  1. 2. composed primarily of actin and myosin
  2. 4. partial but sustained contraction
  3. 6. muscle type that is involuntarily controlled and not striated
  4. 9. muscle that flexes lips
  5. 12. consists of a motor neuron and the muscle fibers that it controls
  6. 13. flexes neck, rotates head
  7. 14. disks on ends of cardiac muscles cells
Down
  1. 1. responsible for the striated apppearance of skeletal muscles
  2. 3. occurs after death when muscles fail to relax due to a lack of ATP
  3. 4. pigment responsible for the reddish-brown color of skeletal muscle
  4. 5. muscles that assist a prime mover
  5. 7. organ that is able to convert lactic acid into glucose
  6. 8. flexes the leg at the knee
  7. 10. closes the jaw
  8. 11. abducts the upper arm