GENERAL HISTOLOGY

Detailed explanation-1: -Spongy bone has lots of needle like pieces called trabeculae and lots of spaces. We classify bones by their shape. Long-longer than wide, compact bone outside, some have spongy bone on the interior.

Detailed explanation-2: -Cancellous tissue, also known as cancellous bone, spongy bone or trabecular bone, is characterized by its spongy, porous, honeycomb-like structure and is typically found at the ends of long bones.

Detailed explanation-3: -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-4: -Under a microscope, you can see that spongy bone is composed of small needlelike pieces of bone called trabeculae and lots of “open” space filled by marrow, blood vessels and nerves (Figure 5.4a, p.