MEDICAL PHYSIOLOGY

Detailed explanation-1: -The medullary cavity is the hollow part of bone that contains bone marrow. The bone marrow makes blood cells and stores fat. Spongy bone (also called cancellous bone) is made up of small, needle-like pieces of bone arranged like a honeycomb.

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. Compact tissue is also known as hard bone, compact bone or compact cortical bone. Source: GreenFacts.

Detailed explanation-3: -Spongy (Cancellous) 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.