ANATOMY

Detailed explanation-1: -It surrounds the medullary cavity and contains blood vessels and nerves. 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.

Detailed explanation-3: -The outer layer has a thin coating called the periosteum. Inside bones there is a supporting structure with interconnecting bony plates and rods called trabeculae. This structure is called trabecular or spongy bone because it looks a bit like sponge. Bone marrow is found in the “holes” of the spongy bone.

Detailed explanation-4: -Spongy bone is found mostly at the ends of bones and contains red marrow. Bone marrow is found in the center of most bones and has many blood vessels. There are two types of bone marrow: red and yellow. Red marrow contains blood stem cells that can become red blood cells, white blood cells, or platelets.

Detailed explanation-5: -There are two basic types of osseous tissue in bones in varying proportions. They are compact (or dense) and spongy (or cancellous) bone. Compact bone is smooth, homogenous, and dense. Spongy bone has lots of needle like pieces called trabeculae and lots of spaces.