Skeletal System (pgs. 88-97)

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Across
  1. 1. Bones are classified as one of four types on the basis of this.
  2. 5. This is necessary for bone growth, repair, & nutrition.
  3. 6. The spinal nerves enter & leave the spinal cord through openings called this.
  4. 7. The last two pair of ribs are called _______ ribs.
  5. 9. The spine consists of small bones called this.
  6. 12. The cranium houses and protects this delicate organ.
Down
  1. 2. This cartilage acts as a shock absorber between two bones that meet to form a joint.
  2. 3. This is a U shaped bone in the neck to which the tongue is attached.
  3. 4. Only humans and other primates possess such a digit, known as an _______ thumb.
  4. 8. Throughout life, bone is constantly renewed through a process called this.
  5. 10. During bone formation, new bone tissue is laid down by these replacing old bone tissue.
  6. 11. The skull contains large spaces within the facial bones, referred to as ________ sinuses.