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Pars ceratopharyngea

Other Terms: Pars ceratopharyngea (Musculus constrictor pharyngis medius), Pars ceratopharyngea musculus constrictoris pharyngis medii

Muscle parts

Chondropharyngeal part; Ceratopharyngeal part

Latin name

Musculus constrictor pharyngis medius

Latin muscle parts

Pars chondropharyngea; Pars ceratopharyngea

Group

Branchial arch muscle – fourth arch (Pharyngeal muscle)

Etymology

The English equivalent for this muscle name is the middle muscle that draws the cleft or gulley together. The word constrictor comes from the Latin terms con meaning “together” and the verb stringere meaning “to bind.” The word pharynx, what is referred to as the throat, arises from the Greek pharangos meaning “cleft, gulley, or ravine.” The Latin word medius means “middle.”

Origin

Lesser cornu and upper surface of entire greater cornu of the hyoid bone

Insertion

Median raphe of the pharynx

Action

Produce both sphincteric and peristaltic actions during swallowing.

Nerve supply

Vagus nerve (Cranial nerve X)

Blood supply

The muscle receives blood from the pharyngeal branches of the ascending pharyngeal artery and from the first and second part of the lingual artery, both branches of the external carotid artery.

Latin

Pars ceratopharyngea musculus constrictoris pharyngis medii

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