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Anatomy Atlases: Illustrated Encyclopedia of Human Anatomic Variation: Opus I: Muscular System: Alphabetical Listing of Muscles: T: Thyroarytenoideus and Vocalis

Illustrated Encyclopedia of Human Anatomic Variation: Opus I: Muscular System: Alphabetical Listing of Muscles: T

Thyroarytenoideus and Vocalis

Ronald A. Bergman, PhD
Adel K. Afifi, MD, MS
Ryosuke Miyauchi, MD

Peer Review Status: Internally Peer Reviewed


A superior thyroarytenoideus muscle, in the form of a thin band, arises from the inner, anterior superior surface of the thyroid cartilage and crosses the cartilage and thyroarytenoideus, inserting on the inferior lateral aspect of the arytenoid cartilage of the larynx.

 

The portion of vocalis that inserts onto the the vocal ligament has been designated the aryvocalis (Ludwig) muscle.

In the same region, a small, somewhat square-shaped muscle extends superiorly from the aryepiglottic muscle (which arises from the oblique arytenoid) to insert into the connective tissue of the aryepiglottic fold. Its name is arymembranaceus.

Image of unusual muscles of the larynx

Unusual Muscles of the Larynx.
from Toldt.


References

Anson, B.J., Ed. (1966) Morris' Human Anatomy,12th ed. The Blakiston Division, McGraw-Hill Book Company, New York.

Macalister, A. (1875) Additional observations on muscular anomalies in human anatomy (third series), with a catalogue of the principal muscular variations hitherto published. Trans Roy Irish Acad Sci. 25:1-134.

Toldt, C. (1928) An Atlas of Human Anatomy for Students and Physicians. The Macmillian Company, New York.

Williams, L.H., Warwick, R., Dyson, M., and L.H. Bannister., Eds. (1989) Gray's Anatomy, 37th ed. Churchill Livingstone, Edinburgh.

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