What is the Difference Between Compact and Spongy Bone?
While compact bone forms the dense outer layer of bones, spongy bone (or cancellous bone) is found inside bones and is characterized by a porous, lattice-like structure. Spongy bone is lighter and less dense than compact bone, and it contains red bone marrow, where blood cells are produced. The two types of bone tissue work together to provide strength, flexibility, and metabolic functions.