Uncinate process of ethmoid bone
Appearance

An uncinate process is a part of a spinal vertebra. It is a hook shaped process on the lateral borders (side edges) of the superior (top) surface of the third to the sixth cervical vertebrae. This bony part prevents a vertebra from sliding backwards off the vertebra below it ( i.e. it prevents posterior linear translation movements of the vertebral bodies) and limits lateral flexion.
The Ethmoid bone also has an uncinate process.
External links
- Anatomy figure: 33:01-02 at Human Anatomy Online, SUNY Downstate Medical Center (Ethmoid)