Across
- 4. The backbone of our body is also called as ______ column
- 5. A tough,elastic tissue present on the surface of bones.
- 6. MARROW A jelly-like substance that present in hollow bone in our body.
Down
- 1. The longest bone in the human body.
- 2. The ______ of an adult human being contains 22 bones.
- 3. The last two pairs of ribs attached to the sternum is called as _____ ribs.