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Mental spine

Mental spine
The posterior aspect of the mandible showing the mental spine.
A medial view of the mandible showing the attachments of geniohyoid and genioglossus.
Latin spinae mentalis
Gray's subject #44 172

The mental spine is a small projection of bone on the posterior aspect of the mandible (jaw bone) in the midline. It is also known as the genial tubercle[1], genial apophysis and the Latin name spinae mentalis. The mental spine is the point of insertion of the geniohyoid muscle[2], one of the suprahyoid muscles and the origin of the genioglossus muscle, one of the muscles of the tongue.


  1. ^ "Genial tubercle." The American Heritage Stedman's Medical Dictionary. Houghton Mifflin Company, 2002. Accessed: 22 Oct. 2007.
  2. ^ "Genial tubercle." Mosby's Dental Dictionary. Elsevier, Inc., 2004. Accessed: 22 Oct. 2007.

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Mental_spine". A list of authors is available in Wikipedia.
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