Symphysis menti

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Bone: Symphysis menti
Gray176.png
Mandible. Outer surface. Side view. (Symphysis menti visible at left).
Gray177.png
Medial surface of the left half of the mandible, dis-articulated from the right side at the symphysis menti.
Latin symphysis mandibulae
Gray's subject #44 172

The external surface of the mandible is marked in the median line by a faint ridge, indicating the symphysis menti, mandibular symphysis, or line of junction of the two pieces of which the bone is composed at an early period of life.

This ridge divides below and encloses a triangular eminence, the mental protuberance, the base of which is depressed in the center but raised on either side to form the mental tubercle.

It serves as the origin for the Geniohyoid and the Genioglossus.

Anterior view of mandible, showing symphysis menti (red broken line).

See also [edit]

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