Spongy bone makes up the majority of bone shafts in long bones.

Spongy Bone

A type of bone tissue characterized by a porous, trabecular architecture, found at the ends of long bones and in the inner layer of flat bones.

Bone Shafts

The long, cylindrical, main portion of a bone, providing structural support and leverage.

Long Bones

Bones that are longer than they are wide, primarily located in the arms and legs, serving as sites for muscle attachment and enabling movement.