What is a spongy bone?

mushroom bone, also called a exactly or trabecular bone, is one of the two types of calcium tissues that form bones in the human body. The mushroom bone is lighter, softer and weaker than compact or cortical bone, the second type of calcium tissue, but has a larger surface area and is much more vascular or supplies blood vessels. The mushroom bone is located on the inside of some bones and is surrounded by a stronger, more protective bone. The office bone tissue is located at the end of long bones, on joints and vertebrae, bones of the backbone column. The office bone is a larger part of the bone than the outer compact bone tissue.

The main functional structure of the spongy bone is a trabecule, a microscopically small structure in the shape of a rod that provides support. Trabeculae are found in many different parts of the body, but are most often made of collagen. The spongy bone is the only tissue that has trabecules made of bone. The large suroblast of the face and the high vascularity of the spongy bone is idealFor metabolic activity such as ion and nutrient exchange.

Mushroom bone often contains red bone marrow, instead of blood cell production. Bone marrow fills open spaces among trabeculations. While the mushroom bone tissue does not contain blood vessels, the surrounding pulp is full of capillaries and helps to transmit nutrients and other metabolic products from blood to bone tissue.

At birth, all bone marrow in the human body is red. As man ages, the bone marrow in the center of the long bones is slowly converted into yellow bone marrow, made mainly of fat cells that do not synthesize blood cells. The bone marrow of a typical adult is half red and half yellow. However, yellow bone marrow can be converted back to red bone marrow if necessary, in case of severe blood loss.