Anatomy of a Long Bone

Front

What is the periosteum?

Back

The tough membrane covering the shaft of the bone.

Front

What is the diaphysis?

Back

The shaft or central part of a long bone.

Front

What is the proximal epiphysis?

Back

The end of a long bone closest to the body's center.

Front

What is the distal epiphysis?

Back

The end of a long bone farthest from the body's center.

Front

What is the medullary cavity?

Back

The central cavity of bone shafts where red and yellow marrow is stored.

Front

What is compact bone?

Back

The dense, hard layer of bone that provides strength and structure.

Front

What is yellow marrow?

Back

A type of bone marrow that stores fat and is found in the medullary cavity.

Front

What is the epiphyseal line?

Back

The remnant of the growth plate in a long bone, indicating where growth occurred.

Front

What is the function of the periosteum?

Back

It provides a surface for muscle attachment and contains blood vessels and nerves.

Front

What is the role of the epiphysis in long bones?

Back

It helps in joint formation and provides a surface for articulation.