Body Systems

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Across
  1. 1. As one muscle _____ the other relaxes
  2. 4. Long bones have a soft inner core called_____
  3. 5. Connects muscle to bone
  4. 7. Type of muscle that attaches to bones
  5. 8. Mineral found in bones
  6. 10. Fingers and toes
  7. 12. Type of movement at elbow and knee joint
  8. 18. Type of joint found in the shoulder and hip
  9. 20. Type of joint at knee and elbow
  10. 21. This muscle contracts when bending the knee
Down
  1. 1. collarbone
  2. 2. Produced in bone marrow
  3. 3. Type of muscle found in the uterus and intestines
  4. 6. Connects bone to bone
  5. 9. Muscles contract and relax automatically, not under our conscious control
  6. 11. Movement of a limb away from the midline of the body
  7. 13. Place where bones come together
  8. 14. Type of muscle found in the heart
  9. 15. Bone that protects your heart and lungs
  10. 16. Muscles contract and relax under our conscious control
  11. 17. This muscle contracts when bending the elbow
  12. 19. Longest bone in the body