Symphysis menti

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Bone: Symphysis menti
Mandible. Outer surface. Side view. (Symphysis menti visible at left).
Latin symphysis mandibulae
Gray's subject #44 172
/ Elsevier

The external surface of the mandible is marked in the median line by a faint ridge, indicating the symphysis menti 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.

See also

Additional images

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.