https://wikimd.org/index.php?action=history&feed=atom&title=Levator_anguli_oris 2026-04-25T10:06:32Z Revision history for this page on the wiki MediaWiki 1.44.2 https://wikimd.org/index.php?title=Levator_anguli_oris&diff=5805898&oldid=prev 2024-05-22T15:34:50Z

<p>CSV import</p> <p><b>New page</b></p><div>[[File:Gray381.png|thumb|Gray381.png]] {{Short description|Muscle of the human body}}<br /> {{Infobox muscle<br /> | Name = Levator anguli oris<br /> | Latin = Musculus levator anguli oris<br /> | Image = Levator anguli oris.png<br /> | Caption = Levator anguli oris muscle (highlighted in red)<br /> | Origin = [[Canine fossa]] of the [[maxilla]]<br /> | Insertion = [[Modiolus (anatomy)|Modiolus]] at the angle of the mouth<br /> | Blood = [[Facial artery]]<br /> | Nerve = [[Buccal branches of the facial nerve]]<br /> | Action = Elevates the angle of the mouth<br /> | Antagonist = [[Depressor anguli oris]]<br /> }}<br /> <br /> The &#039;&#039;&#039;levator anguli oris&#039;&#039;&#039; is a muscle of the human body that is involved in facial expression. It is one of the muscles of the [[mouth]] and is responsible for elevating the angle of the mouth, which contributes to expressions such as smiling.<br /> <br /> == Anatomy ==<br /> The levator anguli oris originates from the [[canine fossa]] of the [[maxilla]], which is located just below the [[infraorbital foramen]]. It inserts into the [[modiolus (anatomy)|modiolus]] at the angle of the mouth, where it intermingles with fibers of other muscles such as the [[orbicularis oris]] and the [[zygomaticus major]].<br /> <br /> == Blood Supply ==<br /> The muscle receives its blood supply from the [[facial artery]], which is a branch of the [[external carotid artery]].<br /> <br /> == Innervation ==<br /> The levator anguli oris is innervated by the [[buccal branches of the facial nerve]] (cranial nerve VII).<br /> <br /> == Function ==<br /> The primary function of the levator anguli oris is to elevate the angle of the mouth. This action is essential for expressions such as smiling and laughing. It works in opposition to the [[depressor anguli oris]], which pulls the angle of the mouth downward.<br /> <br /> == Clinical Significance ==<br /> Dysfunction of the levator anguli oris can result in asymmetry of facial expressions, which may be observed in conditions such as [[Bell&#039;s palsy]] or after [[facial nerve]] injury.<br /> <br /> == See Also ==<br /> * [[Facial muscles]]<br /> * [[Facial nerve]]<br /> * [[Facial artery]]<br /> * [[Zygomaticus major]]<br /> * [[Orbicularis oris]]<br /> <br /> == References ==<br /> {{Reflist}}<br /> <br /> {{Muscles of head and neck}}<br /> {{medicine-stub}}<br /> <br /> [[Category:Muscles of the head and neck]]<br /> [[Category:Facial muscles]]</div>

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