Superior pharyngeal constrictor muscle
|Superior pharyngeal constrictor muscle|
|Muscles of the pharynx and cheek.|
|Muscles of the pharynx, viewed from behind, together with the associated vessels and nerves.|
|Latin||musculus constrictor pharyngis superior|
|Gray's||subject #244 1143|
|Origin:||medial pterygoid plate, pterygomandibular raphé, alveolar process|
|Insertion:||pharyngeal raphe, pharyngeal tubercle|
Origin and insertion
It arises from the lower third of the posterior margin of the medial pterygoid plate and its hamulus, from the pterygomandibular raphé, from the alveolar process of the mandible above the posterior end of the mylohyoid line, and by a few fibers from the side of the tongue.
The interval between the upper border of the muscle and the base of the skull is closed by the pharyngeal aponeurosis, and is known as the sinus of Morgagni.
As soon as the bolus of food is received in the pharynx, the elevator muscles relax, the pharynx descends, and the constrictores contract upon the bolus, and convey it downward into the esophagus.
- 26869838 at GPnotebook
- LUC scon
- Norman/Georgetown lesson8 (latpharyngealitems3)
- Roche Lexicon - illustrated navigator, at Elsevier 05287.011-1
This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.