Long bone

Definition

Long bones are characterized by a greater length than width and consist of a shaft with two ends, which are often expanded. They play crucial roles in support, movement, and the storage of minerals such as calcium.

Related terms

Epiphysis: The end part of a long bone, initially growing separately from the shaft.

Diaphysis: The central shaft of a long bone, which is composed mainly of compact bone tissue to provide strength.

Marrow Cavity: A hollow space within the diaphysis of long bones that contains bone marrow involved in blood cell production