Anatomy Atlases: Illustrated Encyclopedia of Human Anatomic Variation: Opus I: Muscular System: Alphabetical Listing of Muscles: C:

Anatomy Atlases(tm) : A digital library of anatomy information

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

Cricoarytenoideus Posterior (Posterior Cricoarytenoid)

Ronald A. Bergman, PhD
Adel K. Afifi, MD, MS
Ryosuke Miyauchi, MD
Peer Review Status: Internally Peer Reviewed

An occasional band of muscle may be found in contact with the lower border of the posterior cricoarytenoid. The ceratocricoideus (of Merkle) (or keratocricoid) is a short muscle arising near the lower border of cricoid cartilage, a little behind the inferior cornu of the thyroid cartilage, and passing obliquely outward and upward to be inserted into the inferior cornu of the thyroid cartilage. This variation was found in seven of 32 (21.9%) bodies studied and it usually exists on one side of the body only. According to Hetherington, the incidence of this variation is actually about 17%.

Reference
See Anson reference.

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