Across
- 2. protects the lungs and heart
- 4. stimulates red blood cell production in the bone marrow
- 6. Screens for abnormal bone growth
- 7. bones store 99 percent
Down
- 1. dense tissue crowds bone marrow
- 2. caused by lack of vitamin D or Ca; affects bone growth and density
- 3. protects the spinal cord
- 5. bones store 85 percent