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==Definition==
==Definition==
The '''salpingopharyngeus muscle''' is a muscle of the pharyngeal musculature. Together with the stylopharyngeus muscle and the palatopharyngeus muscle, it forms the levator pharyngis muscle.
The '''salpingopharyngeus muscle''' is part of the [[Corpus:Pharyngeal musculature|pharyngeal musculature]]. Along with the [[Corpus:Stylopharyngeus muscle|stylopharyngeus]] and [[Corpus:Palatopharyngeus muscle|palatopharyngeus muscles]], it raises the [[Corpus:Pharynx|pharynx]].  


==Course==
==Course==
===Origin===
===Origin===
The origin of the salpingopharyngeus muscle lies on the inferior part of the tubal cartilage (cartilago tubae auditivae).
The salpingopharyngeus muscle originates from the lower part of the [[Corpus:Auditory tube cartilage|auditory tube cartilage]].


===Attachment===
===Attachment===
The muscle extends steeply downwards and mixes with the fibres of the palatopharyngeal muscle in the lateral pharyngeal wall.
The [[Corpus:Muscle|muscle]] extends steeply downward and blends with the fibers of the palatopharyngeus muscle in the lateral pharyngeal wall.


==Innervation==
==Innervation==
The salpingopharyngeus muscle is innervated by the pharyngeal plexus, a plexus arising from the fibres of the glossopharyngeal nerve (IX nerve) and vagus nerve (X nerve).
The salpingopharyngeus muscle is innervated by the [[Corpus:Pharyngeal plexus|pharyngeal plexus]], which is composed of fibers from the [[Corpus:Glossopharyngeal nerve|glossopharyngeal nerve]] (cranial nerve IX) and the [[Corpus:Vagus nerve|vagus nerve]] (cranial nerve X).


==Function==
==Function==
During the act of swallowing, the salpingopharyngeus muscle supports the other, far more powerful pharyngeal muscles (palatopharyngeus and stylopharyngeus).
During swallowing, the salpingopharyngeus muscle works in conjunction with the more powerful pharyngeal muscles, such as the palatopharyngeus and stylopharyngeus, to assist in elevating the [[Corpus:Pharynx|pharynx]]. Its origin at the auditory tube cartilage allows it to widen the opening of the [[Corpus:Auditory tube|auditory tube]], facilitating pressure equalization in the [[Corpus:Middle ear|middle ear]] during actions like swallowing or yawning — a phenomenon often noticed during airplane landings.
 
Due to its origin at the tubal cartilage, the tube entrance widens so that the pressure in the middle ear can be equalised at the same time when swallowing or yawning (noticeable, for example, when an aircraft is landing).


==Variety==
==Variety==
Although the muscle is usually present, it can also be absent.
Although typically present, the salpingopharyngeus muscle can occasionally be absent in some individuals.
[[Kategorie:Head]]
[[Kategorie:Head]]
[[Kategorie:Muscle]]
[[Kategorie:Muscle]]
[[Kategorie:Corpus]]
[[Kategorie:Corpus]]

Aktuelle Version vom 7. November 2024, 16:33 Uhr

Definition

The salpingopharyngeus muscle is part of the pharyngeal musculature. Along with the stylopharyngeus and palatopharyngeus muscles, it raises the pharynx.

Course

Origin

The salpingopharyngeus muscle originates from the lower part of the auditory tube cartilage.

Attachment

The muscle extends steeply downward and blends with the fibers of the palatopharyngeus muscle in the lateral pharyngeal wall.

Innervation

The salpingopharyngeus muscle is innervated by the pharyngeal plexus, which is composed of fibers from the glossopharyngeal nerve (cranial nerve IX) and the vagus nerve (cranial nerve X).

Function

During swallowing, the salpingopharyngeus muscle works in conjunction with the more powerful pharyngeal muscles, such as the palatopharyngeus and stylopharyngeus, to assist in elevating the pharynx. Its origin at the auditory tube cartilage allows it to widen the opening of the auditory tube, facilitating pressure equalization in the middle ear during actions like swallowing or yawning — a phenomenon often noticed during airplane landings.

Variety

Although typically present, the salpingopharyngeus muscle can occasionally be absent in some individuals.