Mental spine

The Mental Spine is a small bony projection located on the inner surface of the body of the mandible (lower jawbone). It is also known as the Genial Tubercle.

Etymology

The term "Mental Spine" is derived from the Latin word "mentum", meaning chin, and the Latin word "spina", meaning thorn or spine. The term "Genial Tubercle" is derived from the Greek word "genion", meaning chin, and the Latin word "tuberculum", meaning small swelling.

Anatomy

The Mental Spine is a pair of small bony projections, one superior and one inferior, located on the inner surface of the body of the mandible, near the midline. These projections serve as attachment points for several muscles of the mouth and tongue, including the genioglossus, geniohyoid, and genioglossus muscles.

Clinical Significance

The Mental Spine can be palpated during a physical examination of the mouth and jaw. It may be involved in certain medical conditions, such as mandibular fractures, and may be visible on imaging studies, such as computed tomography (CT) scans, of the jaw.

Related Terms

• Mandible: The lower jawbone, in which the Mental Spine is located.
• Genioglossus: A muscle of the tongue, which attaches to the Mental Spine.
• Geniohyoid: A muscle of the mouth, which attaches to the Mental Spine.
• Mandibular Fracture: A break in the mandible, which may involve the Mental Spine.
• Computed Tomography: An imaging technique that can be used to visualize the Mental Spine.

• Unterkiefer dorsal
  Unterkiefer dorsal