Skeletal System

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Across
  1. 1. A lubricant surrounding the bones so they can slide over each other.
  2. 3. Smooth material on the ends of bones, allowing them to slide over each other.
  3. 4. Tissues that contract and stretch. They pull on bones they are attached to, causing them to move.
  4. 6. Is where two bones meet. They allow different types of movement.
  5. 8. It supports the organs and skin, so that we do not collapse. It also protects the organs.
  6. 9. The tissue that attaches bone and muscle. It also holds the muscle in position.
Down
  1. 2. Tough, flexible tissue that holds the joints and bones together. It also keeps them from moving too far from each other.
  2. 5. The inner layer of the bone. Parts of it is filled with bone marrow which red blood cells make up.
  3. 7. The outer layer of the bone. Gives the bone strength, it is dense and heavy.