Across
- 5. The long chain of bones going down our back.
- 6. The skeletal system protects the ______ organs in our body
- 8. The bone that protects our brain inside the head.
Down
- 1. The bones in our chest that look like a cage.
- 2. The main organ of the muscular system.
- 3. Our skeletal system has two hundred and six of these.
- 4. The place where two or more bones meet.
- 7. Muscles help us to walk, run, and ______.