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Pars mylopharyngea
Other Terms:
Mylopharyngeal part of superior constrictor pharyngeus,
Pars mylopharyngea (Musculus constrictor pharyngis superior),
Pars mylopharyngea musculus constrictoris pharyngis superioris
Muscle parts
Pterygopharyngeal part; Buccopharyngeal part; Mylopharyngeal part; Glossopharyngeal part
Latin name
Musculus constrictor pharyngis superior
Latin muscle parts
Pars pterygopharyngea; Pars buccopharyngea; Pars mylopharyngea; Pars glossopharyngea
Group
Branchial arch muscle – fourth arch (Pharyngeal muscle)
Etymology
The English equivalent for this muscle name is the upper 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 superior comes from the Latin superus meaning “upper.”
Origin
Hamulus of the pterygoid process of the sphenoid bone; pterygomandibular raphe; posterior aspect of the mylohyoid line of the mandible; tongue
Insertion
Pharyngeal tubercle of the occipital bone; 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. It also is supplied by the ascending palatine artery, a cervical branch of the facial artery.
Latin
Pars mylopharyngea musculus constrictoris pharyngis superioris
