Long bone & Osteon Review

Front

What is yellow marrow?

Back

Yellow marrow is a type of bone marrow found in the medullary cavity of long bones in adults, primarily composed of fat cells.

Front

What is the medullary cavity?

Back

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

Front

What is the periosteum?

Back

The periosteum is a dense layer of vascular connective tissue enveloping the bones except at the surfaces of the joints.

Front

What is the diaphysis?

Back

The diaphysis is the long, tubular shaft of a long bone, which is composed of compact bone.

Front

What are Central (Haversian) canals?

Back

Central (Haversian) canals are microscopic tubes in the outermost region of bone that allow blood vessels and nerves to travel through the bone.

Front

What is spongy bone?

Back

Spongy bone, also known as cancellous bone, is a type of bone that has a porous structure and is found at the ends of long bones and in the interior of others.

Front

What is the function of osteons?

Back

Osteons, or Haversian systems, are the fundamental functional units of compact bone, providing strength and support.

Front

What are perforating (Volkmann's) canals?

Back

Perforating (Volkmann's) canals are channels that run perpendicular to the Haversian canals, connecting them and allowing for the passage of blood vessels.

Front

What is the role of bone marrow?

Back

Bone marrow is responsible for the production of blood cells, including red blood cells, white blood cells, and platelets.

Front

What is the difference between red marrow and yellow marrow?

Back

Red marrow is involved in blood cell production, while yellow marrow primarily stores fat.