Skip to product information
1 of 2

Paul Kim

Larynx: action of posterior cricoarytenoid muscle (Latin)

Larynx: action of posterior cricoarytenoid muscle (Latin)

The proximal attachment of musculus cricoarytenoid posterior is on the posterior surface of the cartilago cricoidea and its corresponding insertion point is on the processus muscularis of the cartilago arytenoidea. Contraction of the musculus cricoarytenoid posterior rotates the cartilagines arytenoideae laterally and pulls them posterolaterally. Therefore, it is the only muscle of the larynx that abducts the plicae vocales and opens the rima glottidis. This action makes the musculus cricoarytenoid posterior the most important muscle in the larynx in the act of respiration. The open appearance of the rima glottidis in this image represents that seen during forced respiration.
  • Science

    License for academic purposes such as theses, research publishing and the scientific discourse

  • Education

    License for educational purposes, live teaching, presentations, handouts and exam papers

  • Commerce

    License for commercial purposes, editorial use, broadcast and video, website and social media

  • Please visit our License page to find out which license is best for you.
  • The extended usage unlocks additional ways to use our illustrations. Check the license terms for more info.

Regular price $7.56 USD
Regular price Sale price $7.56 USD
Sale Sold out
View full details
Content type
File size
101.31 KB
2 MP