body movements

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Across
  1. 1. the aquatic animal whose skeleton is made
  2. 5. bones in our body forms framework to give shape
  3. 7. fish moves with the help of
  4. 9. example of hinge joint
  5. 11. muscles are attached to bones by
  6. 12. how many legs are their in a cockroach
  7. 13. what is formed by vertebra
Down
  1. 2. which animal body is covered by a hard shell
  2. 3. which aquatic animal have a streamlined body
  3. 4. which joint does elbow have
  4. 6. we are able to bend or rotate our body only at
  5. 8. our body this framework is known as
  6. 9. by cartilage is
  7. 10. organ protect our lungs