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
Dorlands / Elsevier	s_31/12776063

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.

[edit] See also

[edit] Additional images

Muscles of the neck. Lateral view.

Muscles of the neck. Anterior view.

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 As such, some of the information contained herein may be outdated.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.

v • d • e

Bones of head and neck: the facial bones of the skull

Maxilla

Zygomatic

Orbital process (Zygomatico-orbital) - Temporal process (Zygomaticotemporal) - Lateral process (Zygomaticofacial)

Palatine

Fossae	Pterygopalatine fossa - Pterygoid fossa

Plates	Horizontal plate (Posterior nasal spine) - Perpendicular plate (Pterygopalatine canal, Sphenopalatine foramen, Pyramidal process)

Processes	Orbital - Sphenoidal

Mandible

Body	external surface (Symphysis menti, Mental protuberance, Mental foramen) - internal surface (Mental spine, Mylohyoid line, Sublingual fovea, Submandibular fovea) - Alveolar part of mandible

Ramus	Mylohyoid groove (Mandibular canal, Lingula) - Mandibular foramen - Angle Coronoid process - Mandibular notch - Condyloid process