Posterior cricoarytenoid muscle
Muscle of the larynx / From Wikipedia, the free encyclopedia
Dear Wikiwand AI, let's keep it short by simply answering these key questions:
Can you list the top facts and stats about Posterior cricoarytenoid muscle?
Summarize this article for a 10 year old
SHOW ALL QUESTIONS
The posterior cricoarytenoid muscle is a (bilaterally paired) intrinsic muscle of the larynx. It arises from the cricoid cartilage; it inserts onto the arytenoid cartilage of the same side. It is innervated by the recurrent laryngeal nerve. Each acts to open the vocal folds by pulling the vocal fold of the same side laterally. It participates in the production of sounds.
Quick Facts Details, Origin ...
Posterior cricoarytenoid | |
---|---|
Details | |
Origin | Posterior part of the cricoid |
Insertion | Posterior surface of muscular process of the arytenoid cartilage |
Nerve | Recurrent laryngeal nerve branch of the vagus nerve (CN X) |
Actions | Abducts and laterally rotates arytenoid cartilage, pulling vocal ligaments away from the midline and forward and so opening rima glottidis |
Antagonist | Lateral cricoarytenoid muscle |
Identifiers | |
Latin | musculus cricoarytaenoideus posterior |
TA98 | A06.2.08.004 |
TA2 | 2196 |
FMA | 46576 |
Anatomical terms of muscle |
Close