Skeletal System crossword

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Across
  1. 3. an internal or external framework of bone, cartilage, or other rigid material
  2. 6. a soft fatty substance in the cavities of bones, in which blood cells are produced
  3. 8. the tendency toward a relatively stable equilibrium between interdependent elements, especially as maintained by physiological processes.
Down
  1. 1. a set of things working together as parts of a mechanism or an interconnecting network.
  2. 2. a series of vertebrae extending from the skull to the small of the back, enclosing the spinal cord and providing support for the thorax and abdomen; the backbone
  3. 4. a short band of tough, flexible fibrous connective tissue which connects two bones or cartilages
  4. 5. the structure in a human or animal body where two parts of the skeleton join together
  5. 7. each of the small bones forming the backbone
  6. 9. a framework of bones or cartilage enclosing the brain of a vertebrate