Different between the marrow content of a compact bone $ a spongy bone? Different between the marrow content of all bones base on their shapes?Differ between the marrow of long $ flat bones in adults?

The marrow content of a compact bone is primarily red bone marrow, which is responsible for producing red blood cells, white blood cells, and platelets. In contrast, the marrow content of a spongy bone is primarily yellow bone marrow, which consists mainly of fat cells.

In terms of the marrow content of bones based on their shapes, long bones typically have red bone marrow in their central cavities, while flat bones have red bone marrow in their diploe (spongy bone layer) and yellow bone marrow in their outer layers.

In adults, the marrow of long bones tends to become more fatty and contain more yellow bone marrow as they age. In contrast, flat bones in adults tend to maintain a higher proportion of red bone marrow compared to long bones.