Spinous process

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Spinous process
Gray84.png
A cervical vertebra. (Spinous process labeled at bottom.)
Gray85.png
Side view of a typical cervical vertebra. (Spinous process labeled at right.)
Latin processus spinosus vertebrae
Gray's p.97
Anatomical terms of bone

The spinous process of a vertebra is directed backward and downward from the junction of the laminae (in humans), and serves for the attachment of muscles and ligaments. In animals without an erect stance, the process points upward and may slant forward or backward. Spinous processes are exaggerated in some animals, such as the extinct Dimetrodon and Spinosaurus, where they form a sail- or finback.

See also[edit]

Additional images[edit]

External links[edit]

This article incorporates text from a public domain edition of Gray's Anatomy.