Haversian System Structure

Front

What are lacunae?

Back

Lacunae are small cavities in bone tissue that house osteocytes, the mature bone cells.

Front

What is the diaphysis?

Back

The diaphysis is the long, tubular shaft of a long bone, which provides strength and support.

Front

What are lamellae?

Back

Lamellae are thin layers of bone matrix that surround the Haversian canal, forming the structure of osteons.

Front

What is an osteon?

Back

An osteon, or Haversian system, is the fundamental functional unit of compact bone, consisting of a central canal surrounded by concentric lamellae.

Front

What is an osteocyte?

Back

An osteocyte is a mature bone cell that maintains bone tissue and is found in the lacunae.

Front

What is the function of the Haversian canal?

Back

The Haversian canal contains blood vessels and nerves, providing nutrients and communication to the bone.

Front

What are Volkmann's canals?

Back

Volkmann's canals are channels that connect Haversian canals, allowing for the passage of blood vessels and nerves between them.

Front

What is the periosteum?

Back

The periosteum is a dense layer of vascular connective tissue that covers the outer surface of bones, providing protection and serving as an attachment point for muscles.

Front

What is the medullary cavity?

Back

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

Front

What is the role of osteoblasts?

Back

Osteoblasts are bone-forming cells that synthesize and secrete the bone matrix.