The Skeletal and Muscular system

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Across
  1. 4. Bones in the skeleton that are used for movement consisting of your upper and lower limbs.
  2. 9. Supporting framework of an organism.
  3. 10. Spongy tissue inside some of the bones in your body
  4. 12. 2 Muscle working together in which one relaxes and one contracts.
  5. 13. Tough, flexible tissue that hold bones in a joint together
Down
  1. 1. A lubricant for bone ends, allowing them to slide over each other
  2. 2. Tissues that contract and stretch pulling on the bones they are attached to, causing them to move
  3. 3. Smooth material covering the ends of bones moving against each other.
  4. 5. Bones in the skeleton that are used for protection consisting of your head and trunk of vertebrae.
  5. 6. The inner part of the bone (part of it filled with bone marrow)
  6. 7. Tissue that attaches muscle to bone holding the muscle in position
  7. 8. Connection made between 2 bones allowing for movement
  8. 11. The outer layer of the bone that is dense and heavy, giving it its strength.