Inferior pharyngeal constrictor muscle

Inferior pharyngeal constrictor muscle
Muscles of the pharynx and cheek. (Constrictor pharyngis inferior visible at bottom left.)
Muscles of the pharynx, viewed from behind, together with the associated vessels and nerves. (Inf. const. labeled at bottom center.)
Details
OriginCricoid cartilage and thyroid cartilage
InsertionPharyngeal raphe
NervePharyngeal plexus of vagus nerve, recurrent laryngeal nerve and superior laryngeal nerve
ActionsSwallowing
Identifiers
Latinmusculus constrictor pharyngis inferior
TA98A05.3.01.111
TA22187
FMA46623
Anatomical terms of muscle

The inferior pharyngeal constrictor muscle is a skeletal muscle of the neck. It is the thickest of the three outer pharyngeal muscles. It arises from the sides of the cricoid cartilage and the thyroid cartilage. It is supplied by the vagus nerve (CN X). It is active during swallowing, and partially during breathing and speech. It may be affected by Zenker's diverticulum.