Skeletal and muscular system

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Across
  1. 5. muscles These are involuntary muscles
  2. 6. muscles These are related to the heart
  3. 9. helps to connect bones
  4. 10. Protects the lungs and heart
  5. 11. Protects the brain,eyes,nose
Down
  1. 1. A special type of tissue which can expand and contract
  2. 2. joint Also known as planar joint
  3. 3. joint Also known as pivot joint
  4. 4. muscles Also known as striped or skeletal muscles
  5. 7. A part in our body which contains calcium
  6. 8. Also known as the backbone
  7. 12. Bones are held together by this