Muscles of larynx. Side view. Right lamina of thyroid cartilage removed.
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
[edit on Wikidata]
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.
and 25 Related for: Posterior cricoarytenoid muscle information
The posteriorcricoarytenoidmuscle is a (bilaterally paired) intrinsic muscle of the larynx. It arises from the cricoid cartilage; it inserts onto the...
Cricoarytenoidmuscles are muscles that connect the cricoid cartilage and arytenoid cartilage. More specifically, it can refer to: Posterior cricoarytenoid...
The lateral cricoarytenoid (also anterior cricoarytenoid) is an intrinsic muscle of the larynx. It attaches at the cricoid cartilage anteriorly, and at...
trachea, esophagus and the inferior constrictor muscles. The posteriorcricoarytenoidmuscles, the only muscles that can open the vocal folds, are innervated...
pitch phonation. They work as antagonists to the posteriorcricoarytenoidmuscles. The cricothyroid muscles may be injected with botulinum toxin whilst treating...
the laryngeal muscles was helpful in understanding the effects of botulinum toxin injection. The MEPs in the posteriorcricoarytenoidmuscle, lateral cricoarytenoid...
table of skeletal muscles of the human anatomy, with muscle counts and other information. Skeletal muscle maps Anterior view Posterior view A more detailed...
posteriorly by an interarytenoid fold of mucous membrane. The rima glottidis is closed by the lateral cricoarytenoidmuscles and the arytenoid muscle...
cartilage lamina, forming the cricoarytenoid joints at which they can come together, move apart, tilt anteriorly or posteriorly, and rotate. Rheumatoid arthritis...
muscular process gives insertion to the posteriorcricoarytenoidmuscles behind, and to the lateral cricoarytenoidmuscles in front. Gray, Henry (1918). Gray's...
the intrinsic muscles of the larynx. The cricoarytenoid joint was first described by Galen. Cricoarytenoidmuscle von Leden, Hans; Moore, Paul (1961-05-01)...
understood, it is known that when the lateral cricoarytenoidmuscles are active but the transverse arytenoid muscles inactive, a triangular opening is seen between...
occur in the single abductor muscle of the vocal folds, called the posteriorcricoarytenoid. The vocal folds cannot vibrate when they are open. The open position...
superior longitudinal muscle elevates the apex of the tongue to make contact with the hard palate and the bolus is propelled to the posterior portion of the...
paralysis. A suture is used to emulate the action of the lateral cricoarytenoidmuscle and position the paralyzed vocal cord closer to the midline. This...
where there is anterior dislocation of the arytenoid cartilage. In cricoarytenoid joint ankylosis where there is failed arytenoid adduction. The main...
of the vocal fold may also result from mechanical breakdown of the cricoarytenoid joint. It was first described in by Kashima in 1989. Bilateral abductor...
the two convex articular surfaces on the cricoid cartilage (at the cricoarytenoid articulations), the vocal processes are brought closer to each other...
like Guillain–Barré syndrome or myasthenia gravis. The posteriorcricoarytenoid (PCA) is a muscle of the larynx that is responsible for pulling the vocal...
which widens the opening of the throat by activating the Posteriorcricoarytenoid (PCA) muscle. Endoscopic feedback can also be used to show a patient...