Long Bone Anatomy

Front

What is the epiphysis of a long bone?

Back

The epiphysis is the end part of a long bone, initially growing separately from the shaft. It is involved in joint formation and is covered by articular cartilage.

Front

What is stored in the medullary cavity of a long bone?

Back

The medullary cavity primarily stores yellow bone marrow, which is involved in fat storage.

Front

What type of cartilage covers the ends of long bones at joints?

Back

Articular (hyaline) cartilage covers the ends of long bones at joints, providing a smooth surface for joint movement.

Front

What is the function of the medullary cavity?

Back

The medullary cavity serves to store bone marrow and reduce the weight of the bone.

Front

What is the periosteum?

Back

The periosteum is the outer membrane of the bone, consisting of dense irregular connective tissue that provides attachment for muscles and tendons.

Front

What is the endosteum?

Back

The endosteum is a thin membrane lining the medullary cavity and the spaces within spongy bone, involved in bone growth and repair.

Front

What is the epiphyseal plate?

Back

The epiphyseal plate, also known as the growth plate, is a hyaline cartilage plate in the metaphysis at each end of a long bone, responsible for bone lengthening.

Front

What is the difference between compact bone and spongy bone?

Back

Compact bone is dense and forms the outer layer of bones, while spongy bone is lighter, found inside bones, and contains red bone marrow.

Front

What is lamellar bone?

Back

Lamellar bone is mature bone that is organized into thin layers (lamellae) and is stronger than woven bone.

Front

What is the function of the articular cartilage?

Back

Articular cartilage reduces friction and absorbs shock at joints, allowing for smooth movement.