What are the names of cavity with in a bone?

1. Medullary cavity: This is the central cavity of a bone, which contains bone marrow.

2. Haversian canals: These are small channels that run through the bone and contain blood vessels and nerves.

3. Volkmann's canals: These are larger channels that connect the Haversian canals to the surface of the bone.

4. Lacunae: These are small spaces in the bone that contain osteocytes, which are cells that help to maintain the bone tissue.

5. Canaliculi: These are tiny channels that connect the lacunae to each other and to the Haversian canals.