Indicate whether each term represents a structure vs. a cavity, space, or division.
1. Structure
2. Cavity, Space, or Division
1. Insula
2. Fissure
3. Median aperture
4. Cerebellum
5. Cerebrum
6. Dural sinus
7. Gyrus
8. Cerebral aqueduct
9. Interventricular foramen
10. Lateral ventricle