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Pharyngeal Muscles

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Definition: The muscles of the PHARYNX are voluntary muscles arranged in two layers. The external circular layer consists of three constrictors (superior, middle, and inferior). The internal longitudinal layer consists of the palatopharyngeus, the salpingopharyngeus, and the stylopharyngeus. During swallowing, the outer layer constricts the pharyngeal wall and the inner layer elevates pharynx and LARYNX.  /growth: coordinate with MUSCLE DEVELOPMENT; /embryol: coordinate with MUSCLE DEVELOPMENT if pertinent   
Examples Esophageal Sphincter, Upper; Velopharyngeal Sphincter 		Other names Palatopharyngeus; Cricopharyngeus; Pharynx Muscles; Pharynx Muscle; Pharynx Inferior Constrictor; Pharyngeal Muscle; Muscles, Pharyngeal; Muscle, Velopharyngeal; Muscle, Pharyngeal; Muscle, Palatopharyngeal; Muscle, Cricopharyngeus; Velopharyngeal Muscle; Stylopharyngeus; Salpingopharyngeus; Palatopharyngeal Muscle; Muscles of Pharynx; Inferior Constrictor of Pharynx; Cricopharyngeus Muscle

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Sources: NLM Medical Subject Headings, NIH UMLS, Drugs@FDA, FDA AERS original data copyright United States Government. No endorsement implied. Last modified 6/6/2012
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