What nerve Innervates pharyngeal muscles?
The pharyngeal muscles receive innervation from the vagus and glossopharyngeal nerve to work in sync to propel food from the oral cavity into the esophagus.
What nerve innervates the superior pharyngeal constrictor?
vagus nerve
Innervation. Superior pharyngeal constrictor receives innervation from the pharyngeal branch of vagus nerve, via the pharyngeal plexus.
What is the salpingopharyngeus muscle?
The salpingopharyngeus is a muscle of the head and neck, and one of the inner longitudinal muscles of the pharynx. The paired slender muscles create vertical ridges of mucous membrane in the posterior pharyngeal wall descending from the medial ends of the Eustachian tubes to the called the salpingopharyngeal folds.
What is the stylopharyngeus supplied by?
Stylopharyngeus muscle receives innervation from the glossopharyngeal nerve (cranial nerve IX).
What nerves make up the pharyngeal plexus?
Gross anatomy The pharyngeal plexus sends some branches between the middle and inferior constrictors and other branches between the superior and middle constrictors 4,6. It is formed by the pharyngeal branches from the vagus and glossopharyngeal nerves and the cervical sympathetic 3-7.
What nerve Innervates the Palatoglossus muscle?
This is the reason that all the other tongue muscles receive innervation from the twelfth cranial nerve (hypoglossal nerve) except the palatoglossus muscle, which is innervated by the tenth cranial nerve (vagus nerve).
What nerve Innervates the inferior pharyngeal constrictor?
the vagus nerve
Similarly to the superior and middle pharyngeal constrictor muscles, it is innervated by the vagus nerve (cranial nerve X), specifically, by branches from the pharyngeal plexus and by neuronal branches from the recurrent laryngeal nerve.
What nerve Innervates the middle pharyngeal constrictor?
Similarly to the superior and inferior pharyngeal constrictor muscles, the middle pharyngeal constrictor is innervated by a branch of the vagus nerve through the pharyngeal plexus.
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 does the palatopharyngeus do?
It extends anteriorly and inferiorly to attach to the palatine aponeurosis. It functions to elevate the palate, drawing it superiorly and posteriorly during swallowing and yawning.
Which pharyngeal muscle is not innervated by the pharyngeal plexus?
stylopharyngeus
The pharyngeal plexus, with fibers from CN IX, CN X, and cranial part of CN XI, innervates all the muscles of the pharynx (except stylopharyngeus, which is innervated directly by a branch of CN IX).
How is the salpingopharyngeus innervated?
The salpingopharyngeus muscle is innervated by branches of pharyngeal plexus that carry the fibers from the vagus nerve (CN X). The muscle is supplied from the ascending palatine branch of facial artery, greater palatine branch of maxillary artery and the pharyngeal branch of ascending pharyngeal artery.
What is the salpingopharyngeus?
The salpingopharyngeus is a muscle of the head and neck, and one of the inner longitudinal muscles of the pharynx . The paired slender muscles create vertical ridges of mucous membrane in the posterior pharyngeal wall descending from the medial ends of the Eustachian tubes to the called the salpingopharyngeal folds.
What is the function of the palatopharyngeus?
General. The three paired muscles of the inner pharynx act as a group in order to elevate the larynx, shorten the pharynx and act during swallowing and speaking. These muscles are known as the stylopharyngeus, the palatopharyngeus and the salpingopharyngeus.
Why does the salpingopharyngeus open the Eustachian tubes?
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. As the salpingopharyngeus is used to open the eustachian tubes to equalize pressure in the middle ear, the muscle can easily be stimulated by swallowing.