Medullary cavity

Medullary Cavity

The Medullary Cavity (pronounced: meh-duh-luh-ree kav-uh-tee) is a central cavity located within the shaft of the long bones, such as the femur and humerus. It is also known as the marrow cavity.

Etymology

The term "Medullary" is derived from the Latin word "medulla," which means "middle" or "center." The term "Cavity" comes from the Latin word "cavitas," which means "hollow."

Description

The Medullary Cavity is filled with Bone Marrow, a soft, spongy tissue that produces blood cells. There are two types of bone marrow: red and yellow. Red bone marrow produces red blood cells, white blood cells, and platelets, while yellow bone marrow stores fat.

Function

The primary function of the Medullary Cavity is to house the bone marrow. This is where hematopoiesis, the production of blood cells, takes place. It also serves as a storage area for energy in the form of fat.

Related Terms

Bone Marrow: The soft, spongy tissue that fills the medullary cavity.
Hematopoiesis: The process of blood cell production, which occurs in the bone marrow.
Long Bones: The type of bones that contain a medullary cavity. Examples include the femur and humerus.
Femur: The longest and strongest bone in the human body, which contains a medullary cavity.
Humerus: The bone of the upper arm or forelimb, which also contains a medullary cavity.