Xrthnty

Arytenoid muscle
Muscles of larynx. Posterior view. Oblique arytenoid: The "X" in the center. Transverse arytenoid: Bands underneath the "X". Aryepiglotticus: Wraps around back.
Sagittal section of the larynx and upper part of the trachea. (Arytenoideus visible at center right.)
Details
Origin	Arytenoid cartilage on one side
Insertion	Arytenoid cartilage on opposite side
Artery	superior laryngeal artery
Nerve	recurrent laryngeal branch of the vagus
Actions	approximate the arytenoid cartilages (close rima glottis)
Identifiers
Latin	Musculus arytaenoideus
TA	A06.2.08.012
FMA	46582
Anatomical terms of muscle [edit on Wikidata]

The arytenoid /ærɪˈtiːnɔɪd/ is a single muscle, filling up the posterior concave surfaces of the arytenoid cartilages.

It arises from the posterior surface and lateral border of one arytenoid cartilage, and is inserted into the corresponding parts of the opposite cartilage.

It consists of oblique and transverse parts.

Action

The Arytœnoideus approximates the arytenoid cartilages, and thus closes the aperture of the glottis, especially at its back part to eliminate the posterior commissure of the vocal folds.

Additional images

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  The cartilages of the larynx. Posterior view.
  

  
  

  
  


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  Muscles of larynx. Side view. Right lamina of thyroid cartilage removed.
  

  
  

  
  


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  Aryepiglotic muscle
  

  
  

  
  


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  Muscles of the larynx, seen from above.
  

  
  

  
  


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  Dissection of the muscles of the palate from behind.
  

  
  

  
  

References

• This article incorporates text in the public domain from page 1082 of the 20th edition of Gray's Anatomy (1918)

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