Body Parts and Traits

Across

1. Bone protecting the front of the knee

3. Pain in the neck or back

5. Permanent mark that cannot be erased

8. Soft tissue covering the bones

10. Stomach area often rubbed when hungry

12. Covered with sharp pointed projections

13. Part of the eye you look at closely

Down

2. Upper arm bone connecting shoulder and elbow

4. Part of the ear or brain

6. Muscle at the back of the upper arm

7. Joint connecting upper arm and forearm

9. Windpipe connecting throat and lungs

11. Organ involved in immune system development