Sphenomandibularis

From WikiMD's Food, Medicine & Wellness Encyclopedia

Sphenomandibularis is a muscle that is considered by some anatomists to be a part of the temporalis. It is a thin, ribbon-like muscle that originates from the sphenoid and inserts into the mandible.

Etymology[edit | edit source]

The term "sphenomandibularis" is derived from the Greek word "sphen", meaning wedge, and the Latin word "mandibula", meaning jawbone. This name is indicative of the muscle's origin and insertion points.

Anatomy[edit | edit source]

The sphenomandibularis originates from the sphenoid near the foramen spinosum. It then descends downwards and laterally to insert into the medial surface of the mandible, near the mandibular foramen.

Function[edit | edit source]

The sphenomandibularis assists in the elevation and retraction of the mandible, aiding in actions such as chewing and speaking. It works in conjunction with other muscles of mastication, including the masseter, the temporalis, and the medial pterygoid.

Clinical Significance[edit | edit source]

Due to its location and function, the sphenomandibularis may be involved in conditions affecting the temporomandibular joint (TMJ), such as TMJ dysfunction or trismus.

See Also[edit | edit source]

Sphenomandibularis Resources
Doctor showing form.jpg
Wiki.png

Navigation: Wellness - Encyclopedia - Health topics - Disease Index‏‎ - Drugs - World Directory - Gray's Anatomy - Keto diet - Recipes

Search WikiMD


Ad.Tired of being Overweight? Try W8MD's physician weight loss program.
Semaglutide (Ozempic / Wegovy and Tirzepatide (Mounjaro) available.
Advertise on WikiMD

WikiMD is not a substitute for professional medical advice. See full disclaimer.

Credits:Most images are courtesy of Wikimedia commons, and templates Wikipedia, licensed under CC BY SA or similar.

Contributors: Prab R. Tumpati, MD