Salpingopharyngeus muscle

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Salpingopharyngeus muscle
Salpingopharyngeus.png
Dissection of the muscles of the palate from behind.
Details
Originlower part of the cartilage of the auditory tube
Insertionfibers pass downward and blend with the palatopharyngeus muscle to the upper border thyroid cartilage, blending with constrictor fibers
Arteryascending pharyngeal artery
Nervevagus nerve (CN X)
Actionsassists in elevating pharynx, pulls on torus tubarius to pressure equalize middle ear
Identifiers
LatinMusculus salpingopharyngeus
TA98A05.3.01.115
TA22191
FMA46665
Anatomical terms of muscle

The salpingopharyngeus muscle is a muscle of the pharynx. It arises from cartilage around the Eustachian tube, and inserts into the palatopharyngeus muscle by blending with its posterior fasciculus. It raises the pharynx and larynx during deglutition (swallowing) and laterally draws the pharyngeal walls up. It opens the pharyngeal orifice of the Eustachian tube during swallowing allowing for the equalization of pressure between it and the pharynx.

Structure[]

The salpingopharyngeus muscle arises from the superior border of the medial cartilage of the Eustachian tube, in the nasal cavity.[1][2] This makes the posterior welt of the torus tubarius.[1] It passes downward and blends with the posterior fasciculus of the palatopharyngeus muscle.[2]

Nerve supply[]

The salpingopharyngeus is supplied by the vagus nerve (CN X) via the pharyngeal plexus.[2]

Blood supply[]

The salpingopharyngeus muscle is supplied by the ascending pharyngeal artery.

Function[]

The salpingopharyngeus muscle raises the pharynx and larynx during deglutition (swallowing) and laterally draws the pharyngeal walls up.[3] Unusually, it is relaxed during deglutition, but contracts at all other times.[3] It opens the pharyngeal orifice of the Eustachian tube during swallowing allowing for the equalization of pressure between the it and the pharynx.

See also[]

Additional images[]

  • Torus tubarius dissection show salpingopharyngeus muscle

  • salpingopharyngeus muscle dissection

References[]

Public domain This article incorporates text in the public domain from page 1143 of the 20th edition of Gray's Anatomy (1918)

  1. ^ a b Simkins, Cleveland S. (1943). "Functional Anatomy of the Eustachian Tube". Archives of Otolaryngology–Head & Neck Surgery. 38 (5): 476–84. doi:10.1001/archotol.1943.00670040495009.
  2. ^ a b c McMyn, J. K. (January 1940). "The Anatomy of the Salpingo-Pharyngeus Muscle". The Journal of Laryngology and Otology. 55 (1): 1–22. doi:10.1017/S002221510000517X. ISSN 1748-5460.
  3. ^ a b Guindi, G. M.; Charia, K. K. C. (1980-11-01). "A reappraisal of the salpingo-pharyngeus muscle". Archives of oto-rhino-laryngology. 229 (2): 135–141. doi:10.1007/BF00454236. ISSN 1434-4726.

External links[]

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