CH7 Skeletal System

Front

What is the function of the periosteum?

Back

The periosteum is a dense layer of vascular connective tissue that envelops the bones except at the surfaces of the joints. It serves as a protective layer and provides a surface for the attachment of muscles and tendons.

Front

What is compact bone?

Back

Compact bone is the dense, hard layer of bone tissue that provides strength and support. It forms the outer layer of bones and is composed of tightly packed osteons.

Front

What is spongy bone?

Back

Spongy bone, also known as cancellous bone, is a lighter, less dense bone tissue found at the ends of long bones and in the interior of others. It contains trabeculae and is involved in the production of blood cells.

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. It plays a crucial role in the production of blood cells.

Front

What is yellow marrow?

Back

Yellow marrow is a type of bone marrow that is primarily made up of fat cells. It is found in the medullary cavity of long bones and serves as an energy reserve.

Front

What is the role of articular cartilage?

Back

Articular cartilage is a smooth, white tissue that covers the ends of bones in joints. It reduces friction and absorbs shock during movement.

Front

What are the classifications of bones?

Back

Bones are classified into four main categories: long bones, short bones, flat bones, and irregular bones, based on their shapes and functions.

Front

What is an osteon?

Back

An osteon, or Haversian system, is the fundamental functional unit of compact bone. It consists of a central canal surrounded by concentric rings of bone matrix.

Front

What is the difference between red and yellow bone marrow?

Back

Red bone marrow is responsible for producing blood cells, while yellow bone marrow primarily stores fat and serves as an energy reserve.

Front

What is the significance of trabecular bone?

Back

Trabecular bone, or spongy bone, provides structural support and flexibility to bones while reducing their weight. It also houses bone marrow.