Which type of bone is generally heavier?

Compact bone is generally heavier than spongy bone due to its dense structure. It is made up of tightly packed osteons or Haversian systems, which provide strength and support to the skeleton. Compact bone forms the outer layer of bones and is involved in protecting internal organs and providing attachment points for muscles.

In contrast, spongy bone, also known as cancellous bone, has a lighter, more porous structure that contains trabeculae, which help to reduce the overall weight of the bone while still providing strength. Cartilaginous bone refers to the types of bones that contain cartilage, which is flexible and not as heavy as bone, while hydrostatic bone is not a recognized category in human anatomy and generally refers to the skeletal structure found in some invertebrates.

The dense mineral content of compact bone contributes to its weight, making it the appropriate answer when considering which type of bone is generally heavier.