Mental spine

Mental spine
Mental spine
	The posterior aspect of the mandible, showing mental spines.
	A medial view of the mandible showing the attachments of genmkyoid and genioglossus.
Details
Part of	Mandible
System	Skeletal
Identifiers
Latin	spinae mentalis
	Anatomical terminology [edit on Wikidata]

A mental spine is a small projection of bone on the posterior aspect of the mandible in the midline. There are usually four mental spines: two superior and two inferior. Collectively they are also known as the genial tubercle,^[1] genial apophysis and the Latin name spinae mentalis. The inferior mental spines are the points of origin of the geniohyoid muscle,^[2] one of the suprahyoid muscles, and the superior mental spines are the origin of the genioglossus muscle, one of the muscles of the tongue. Mental spines are important landmarks in clinical practice.

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

[:0-1] "Genial tubercle." The American Heritage Stedman's Medical Dictionary. Houghton Mifflin Company, 2002. Accessed: 22 Oct. 2007.

[:1-2] "Genial tubercle." Mosby's Dental Dictionary. Elsevier, Inc., 2004. Accessed: 22 Oct. 2007.

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