Across
- 4. The short, thick finger on the side of your hand.
- 6. The structure of ribs that protects your heart and lungs in your chest.
- 7. The bones of the head that surround the brain.
- 9. One of the four teeth at the back.
Down
- 1. A place in your body where two bones are connected.
- 2. The circular black area in the centre of an eye.
- 3. Any of the hard parts inside a human or animal.
- 5. One of the teeth of young children and some other young mammals that fall out and are replaced by permanent teeth.
- 8. Two organs in the chest with which people and some animals breathe.