They are innervated by the pharyngeal branch of the vagus nerve (CN X) with the exception of the stylopharyngeus muscle which is innervated by the glossopharyngeal nerve (CN IX). Citation, DOI, disclosures and article data.
INSERTION OF INFERIOR PHARYNGEAL CONSTRICTOR MUSCLE SKIN
innervation : buccal nerve (branch of the facial nerve (VII)) action : wrinkling of the skin of the nose. insertion: skin of the inferior glabella. the muscular process posteriorly, abducting vocal folds, inferior laryngeal nerve. There are two muscular layers of the pharynx: the outer circular layer and the inner longitudinal layer.ĭuring swallowing, these muscles constrict to propel a bolus downwards (an involuntary process).ĭuring swallowing, these muscles act to shorten and widen the pharynx. origin: descending fibers of frontalis muscle coalesce with procerus. origin of middle pharyngeal constrictor m. The pharyngeal muscles (involuntary skeletal) push food into the esophagus. the pharyngeal constrictor muscles, which also functions during. The pharyngeal muscles are a group of muscles that form the pharynx, which is posterior to the oral cavity, determining the shape of its lumen, and affecting its sound properties as the primary resonating cavity. upward toward the midline and insert at the inferior borders of our lower ribs (10th.
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