The Skeletal System: Function and Terms

Axial Skeleton

Axial Skeleton

The central parts of the skeleton, including the skull, vertebral column, and rib cage.

Appendicular Skeleton

The peripheral parts of the skeletal system, including all of the bones in the arms, legs, and the pelvic and pectoral girdles.

Diaphysis

The main, long, central part of a long bone.

Epiphysis

The tip or end of a long bone.

Metaphysis

The growing portion of bone located between the diaphysis and epiphysis.

Osteoblasts

Cells responsible for the formation of bone.

Osteoclasts

Cells responsible for the removal or resorption of bone tissue.

Epiphyseal Plate

The growth plate located between the metaphysis and epiphysis that allows bones to grow.