Skeletal System

Front

What are the major functions of the skeletal system?

Back

The major functions of the skeletal system include body movement, support and protection, and storage of minerals such as calcium, magnesium, sodium, and potassium.

Front

What is the hollow chamber inside a long bone filled with bone marrow called?

Back

The hollow chamber inside a long bone filled with bone marrow is called the medullary cavity.

Front

What are the two main divisions of the skeleton?

Back

The two main divisions of the skeleton are the axial skeleton and the appendicular skeleton.

Front

What is the shaft or central part of a long bone called?

Back

The shaft or central part of a long bone is called the diaphysis.

Front

What type of bone is the femur?

Back

The femur is classified as a long bone.

Front

What is the role of the axial skeleton?

Back

The axial skeleton supports the head, neck, and trunk, and protects the brain, spinal cord, and thoracic organs.

Front

What is the role of the appendicular skeleton?

Back

The appendicular skeleton facilitates movement and includes the bones of the limbs and the girdles that attach them to the axial skeleton.

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, has a porous structure, and is found mainly at the ends of long bones.

Front

What is the periosteum?

Back

The periosteum is a dense layer of vascular connective tissue that covers the outer surface of bones, except at the surfaces of the joints.

Front

What is bone marrow and what are its types?

Back

Bone marrow is the soft tissue found in the medullary cavity of bones. There are two types: red marrow (produces blood cells) and yellow marrow (stores fat).