The salpingopharyngeus is known to raise the pharynx and larynx during deglutition (swallowing) and laterally draws the pharyngeal walls up. In addition, it opens the pharyngeal orifice of the pharyngotympanic tube during swallowing.
What is the Stylopharyngeus muscle?
The stylopharyngeus muscle is a long, slender and tapered longitudinal pharyngeal muscle that runs between the styloid process of the temporal bone and the pharynx and functions during the pharyngeal phase of swallowing.
What Innervates the Palatopharyngeus muscle?
The muscle receives motor innervation from the cranial portion of the accessory nerve (CN XI). This occurs via the pharyngeal plexus with branches from the vagus nerve (CN X) and glossopharyngeal nerve (CN IX).
What are pharyngeal constrictors?
The posterior wall of the airway is largely comprised of the pharyngeal constrictor muscles which wrap around the airway and so also contribute to the lateral walls. As the name suggests, activation of these muscles constricts the airway, which assists in swallowing.
Where does the salpingopharyngeus attach?
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.
What is the pharyngeal raphe?
The pharyngeal raphe is a midline tendinous seam where the constrictor muscles meet. When the superior constrictor muscle contracts, it constricts the upper portion of the pharynx. The middle constrictor muscle originates from the greater and lesser horn of the hyoid bone and stylohyoid ligament.
What is Stylopharyngeus innervated by?
The stylopharyngeus is the only muscle in the pharynx innervated by the glossopharyngeal nerve (CN IX) via branchial motor neurons with their cell bodies in the rostral part of the nucleus ambiguus.
Where is Stylopharyngeus located?
The stylopharyngeus muscle is in the head and neck region, and one of the inner longitudinal muscles of the pharynx.
What is the Palatoglossus?
The palatoglossus muscle, also known as musculus palatoglossus, is among the four extrinsic muscles of the tongue and the paired muscles of the soft palate. The right and left palatoglossus muscles create ridges in the lateral pharyngeal wall, referred to as the palatoglossal arches (anterior faucial pillars).
How do you pronounce Palatopharyngeus?
Pronunciation
(Classical) IPA: /pa.laː.to.pʰaˈryn.ɡ [päɫ̪äːt̪ɔpʰäˈrʏŋɡeʊs̠](Ecclesiastical) IPA: /pa.la.to.faˈrin.d͡ʒ [pälät̪ofäˈrin̠ʲd͡ʒeus]
What is palatopharyngeal sphincter?
Purpose: The transition muscle between the palatopharyngeus (PP) and the superior constrictor of the pharynx (SCP) encircles the pharyngeal isthmus from behind and is designated as the palatopharyngeal sphincter (PPS).
What elevates the larynx?
Inferior pharyngeal constrictor muscles: attaches anteriorly along the lateral regions of the thyroid and cricoid cartilages, and runs superiorly and posteriorly to meet with opposing fibers at the posterior median raphe of the pharynx. This muscle elevates the larynx.
What is the act of swallowing called?
The process of swallowing, also known as deglutition, involves the movement of substances from the mouth (oral cavity) to the stomach via the pharynx and esophagus.
What are the three stages of swallowing?
Anatomically, swallowing has been divided into three phases: oral, pharyngeal, and esophageal. The oral phase includes preparatory as well as early transfer phases.
Is the auditory tube the same as eustachian tube?
eustachian tube, also called auditory tube, hollow structure that extends from the middle ear to the pharynx (throat). The eustachian tube is about 31–38 mm (1.2–1.5 inches) long in humans and lined with mucous membrane.
What is the pharyngeal recess?
The fossa of Rosenmüller is a bilateral projection of the nasopharynx just below the skull base. It is also called the lateral pharyngeal recess or simply the pharyngeal recess. The fossa is covered by nasopharyngeal mucosa and is the most common site of origin of nasopharyngeal carcinoma (NPC).
What is levator veli palatini?
The levator veli palatini (levator) muscle is considered to be the primary muscle responsible for velar elevation. As its name implies, it functions to elevate the velum to create closure between the oral and nasal cavities (Moon and Kuehn, 2004).
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