Medullary cavity

Definition

The medullary cavity is a hollow region within the diaphysis (shaft) of long bones, filled with yellow bone marrow. It plays a crucial role in the storage of adipose tissue (fat) and serves as the main site of red blood cell production in adults.

Related terms

Bone Marrow: A soft tissue inside bones that produces blood cells and stores fat.

Diaphysis: The shaft or central part of a long bone, where the medullary cavity is located.

Adipose Tissue: A type of body fat that serves as an energy reserve and provides insulation and protection to organs