ANATOMY

Detailed explanation-1: -Spongy (cancellous) bone is lighter and less dense than compact bone. Spongy bone consists of plates (trabeculae ) and bars of bone adjacent to small, irregular cavities that contain red bone marrow. The canaliculi connect to the adjacent cavities, instead of a central haversian canal, to receive their blood supply.

Detailed explanation-2: -Spongy bone tissue fills part or all of the interior of many bones. As its name suggests, spongy bone is porous like a sponge, containing an irregular network of spaces. This makes spongy bone much less dense than compact bone.

Detailed explanation-3: -Bone tissue is generally classified as compact or spongy bone. Compact bone forms the hard outer layer of bone while spongy bone forms the porous interior.

Detailed explanation-4: -Spongy bone is lighter and less dense than compact bone because of its unique trabecular matrix.

Detailed explanation-5: -Density of Cancellous Bone Tissue The density of trabecular or spongy or cancellous bone is 1.874 g/mm^3. There are many advantages to having less dense bone in the human body.