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.
|Nerve||receives motor innervation by Vagus nerve (CN X). Stylopharyngeus receives motor innervation by Glossopharyngeal (CN IX)|
|Latin||musculi pharyngis, musculus constrictor pharyngis or tunica muscularis pharyngis|
|Anatomical terms of muscle|
The pharyngeal muscles(involuntary skeletal) pushing the food into the esophagus. There are two muscular layers of the pharynx: the outer circular layer and the inner longitudinal layer. The outer circular layer includes:
During swallowing, these muscles constrict to propel bolus downwards (an involuntary process).
The inner longitudinal layer includes:
During swallowing, these muscles act to shorten and widen the pharynx.