Salpingopharyngeus muscle
Encyclopedia
The salpingopharyngeus muscle arises from the inferior part of the cartilage of the pharyngotympanic tube (Eustachian tube) in the nasal cavity; it passes downward and blends with the posterior fasciculus
of the palatopharyngeus muscle.
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. This allows for the equalization of pressure between the auditory canal and the pharynx.
The salpingopharyngeus is innervated by the vagus nerve
(CN X) via the pharyngeal plexus
.
Muscle fascicle
In anatomy, a fascicle is a bundle of skeletal muscle fibers surrounded by perimysium, a type of connective tissue.Specialized muscle fibers in the heart that transmit electrical impulses from the Atrioventricular Node to the Purkinje Fibers are fascicles, also referred to as bundle branches...
of the palatopharyngeus muscle.
The salpingopharyngeus is known to raise the pharynx
Pharynx
The human pharynx is the part of the throat situated immediately posterior to the mouth and nasal cavity, and anterior to the esophagus and larynx. The human pharynx is conventionally divided into three sections: the nasopharynx , the oropharynx , and the laryngopharynx...
and larynx
Larynx
The larynx , commonly called the voice box, is an organ in the neck of amphibians, reptiles and mammals involved in breathing, sound production, and protecting the trachea against food aspiration. It manipulates pitch and volume...
during deglutition (swallowing) and laterally draws the pharyngeal walls up. In addition, it opens the pharyngeal orifice of the pharyngotympanic tube during swallowing. This allows for the equalization of pressure between the auditory canal and the pharynx.
The salpingopharyngeus is innervated by the vagus nerve
Vagus nerve
The vagus nerve , also called pneumogastric nerve or cranial nerve X, is the tenth of twelve paired cranial nerves...
(CN X) via the pharyngeal plexus
Pharyngeal plexus
Pharyngeal plexus can refer to:* Pharyngeal plexus of vagus nerve* Pharyngeal plexus...
.
