Match the missing word with the sentence where it belongs.
1. The spongy, inner tissue of a bone is called tissue.
2. The inner cavities of bones are filled with
3. The bones are operated by to produce body movements
4. The hard, outside part of a bone is called tissue.
5. Red blood corpuscles are formed in the marrow of bones.

a. bone marrow
b. compact or dense
c. cancellous
d. bone
e. muscle