Carotid tubercle - Tuberculum caroticum
Carotid tubercle is the anterior tubercle of C6. It's well developed and so called because of the risk of compression of common carotid artery on it.
This definition incorporates text from a public domain edition of Gray's Anatomy (20th U.S. edition of Gray's Anatomy of the Human Body, published in 1918 – from http://www.bartleby.com/107/).
General Anatomy > Bones; Skeletal system > Axial skeleton > Vertebral column > Carotid tubercle