The Skeletal System

Name: ______________________   Date: ____________

Use the clues to fill in the crossword.

Across

  1. 2. Tough elastic tissue (9)
  2. 5. A mutually agreed delay in the date set for the completion of a job or payment of a debt (9)
  3. 6. An abnormal passage leading from a suppurating cavity to the body surface (5)
  4. 9. A cell from which bone develops (10)
  5. 11. The point of connection between two bones or elements of a skeleton (12)
  6. 14. A dense fibrous membrane covering the surface of bones and serving as an attachment for tendons (10)
  7. 15. A thin membrane that is one of the calcified layers that form bones (7)

Down

  1. 1. Adjacent to the nasal cavities (9)
  2. 3. Vascular membrane that lines the inner surface of long bones (9)
  3. 4. Relating to or secreting ___ (8)
  4. 7. Cell that functions in the breakdown and resorption of bone tissue (10)
  5. 8. The body substance in which tissue cells are embedded (6)
  6. 10. Mature bone cell (plural) (10)
  7. 12. An encircling or ringlike structure (6)
  8. 13. A protuberance on a bone especially for attachment of a muscle or ligament (8)
  9. 14. Rotation of the hands and forearms so that the palms face downward (9)