Corpus: Palatopharyngeus muscle: Unterschied zwischen den Versionen

Aktuelle Version vom 7. November 2024, 16:36 Uhr

Definition

The palatopharyngeus muscle is a long muscle that forms the posterior palatine arch and is part of the palatal musculature. Some authors also classify it as part of the pharyngeal musculature, grouping it with the stylopharyngeus and salpingopharyngeus muscles as part of the muscle group that is responsible for raising the pharynx.

Course

Origin

The palatopharyngeus muscle originates from the palatal aponeurosis of the soft palate. It is divided into two fascicles by the levator veli palatini and uvulae muscles. The thicker, anterior fascicle runs between the levator veli palatini and tensor veli palatini muscles, while the posterior fascicle runs directly beneath the mucosa. Both fascicles converge with the muscle on the opposite side at the midline.

Attachment

The fibers of the palatopharyngeus muscle run laterally and downward behind the palatine tonsil, where they merge with the fibers of the stylopharyngeus muscle. Together, they insert into the posterior edge of the thyroid cartilage, with some fibers continuing into the lateral walls of the pharynx. During its course, the salpingopharyngeus muscle elevates the salpingopharyngeal fold on the lateral pharyngeal wall.

Innervation

The palatopharyngeus muscle is innervated by the pharyngeal plexus.

Function

The primary function of the palatopharyngeus muscle is to support the act of swallowing.

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-{{Raw}}
 ==Definition==
-The '''palatopharyngeus muscle''' is a long muscle that forms the posterior palatine arch (arcus palatopharyngeus) and is part of the palatal musculature.
+The '''palatopharyngeus muscle''' is a long [[Corpus:Muscle|muscle]] that forms the posterior palatine arch and is part of the [[Corpus:Palatal musculature|palatal musculature]]. Some authors also classify it as part of the [[Corpus:Pharyngeal musculature|pharyngeal musculature]], grouping it with the [[Corpus:Stylopharyngeus muscle|stylopharyngeus]] and [[Corpus:Salpingopharyngeus muscle|salpingopharyngeus muscles]] as part of the muscle group that is responsible for raising the [[Corpus:Pharynx|pharynx]].
-Some authors also categorise it as part of the pharyngeal musculature and group it together with the stylopharyngeus and salpingopharyngeus muscles as the levator pharyngis muscle.
 ==Course==
 ===Origin===
-The palatopharyngeus muscle originates from the palatal aponeurosis of the soft palate. It is divided into two fascicles by the levator veli palatini muscle and the uvulae muscle. The thicker, anterior fascicle runs between the levator veli palatini muscle and the tensor veli palatini muscle. The posterior fascicle runs directly under the mucosa. Both fascicles are in contact with the muscle of the same name on the opposite side in the median plane.
+The palatopharyngeus muscle originates from the [[Corpus:Palatal aponeurosis|palatal aponeurosis]] of the [[Corpus:Soft palate|soft palate]]. It is divided into two fascicles by the [[Corpus:Levator veli palatini muscle|levator veli palatini]] and [[Corpus:Uvulae muscle|uvulae muscles]]. The thicker, anterior fascicle runs between the levator veli palatini and [[Corpus:Tensor veli palatini muscle|tensor veli palatini muscles]], while the posterior fascicle runs directly beneath the mucosa. Both fascicles converge with the muscle on the opposite side at the midline.
 ===Attachment===
-The fibres of the palatopharyngeal muscle run laterally and caudally behind the palatine tonsil (tonsilla palatina), where they meet the fibres of the stylopharyngeal muscle. Together they insert into the posterior edge of the thyroid cartilage (cartilago thyroidea), while other fibres are lost in the lateral walls of the pharynx.
+The fibers of the palatopharyngeus muscle run laterally and downward behind the [[Corpus:Palatine tonsil|palatine tonsil]], where they merge with the fibers of the stylopharyngeus muscle. Together, they insert into the posterior edge of the [[Corpus:Thyroid cartilage|thyroid cartilage]], with some fibers continuing into the lateral walls of the pharynx. During its course, the salpingopharyngeus muscle elevates the [[Corpus:Salpingopharyngeal fold|salpingopharyngeal fold]] on the lateral pharyngeal wall.
-In its course, the salpingopharyngeus muscle raises the plica salpingopharyngea on the lateral pharyngeal wall.
 ==Innervation==
-The palatopharyngeal muscle is innervated by the pharyngeal plexus.
+The palatopharyngeus muscle is innervated by the [[Corpus:Pharyngeal plexus|pharyngeal plexus]].
 ==Function==
-The palatopharyngeus muscle supports the act of swallowing.
+The primary function of the palatopharyngeus muscle is to support the act of swallowing.
 [[Kategorie:Corpus]]
 [[Kategorie:Head]]
 [[Kategorie:Muscle]]