What nerve runs with stylopharyngeus?
Stylopharyngeus muscle receives innervation from the glossopharyngeal nerve (cranial nerve IX).
What is the function of the stylopharyngeus muscle?
The stylopharyngeus muscle act as a significant dilating muscle of the nasopharynx. During breathing, the contraction of this muscle pulls the nasopharyngeal wall dorsally. This action prevents the dynamic collapse of the dorsal wall of the nasopharynx by supporting the wall during inspiration.
What is the Palatopharyngeus muscle?
The palatopharyngeus muscle is a muscle of the head and neck, and one of the inner longitudinal muscles of the pharynx. It is also referred to as one of the five paired muscles of the soft palate. The paired muscles create ridges of mucous membrane in the lateral pharyngeal wall called the palatopharyngeal arches.
Where is the stylopharyngeus muscle located?
The stylopharyngeus muscle is in the head and neck region, and one of the inner longitudinal muscles of the pharynx.
Is stylopharyngeus skeletal muscle?
The glossopharyngeal nerve provides motor innervation to the stylopharyngeus muscle. This cranial nerve has mostly sensory fibers, but provides motor innervation to one skeletal muscle, the stylopharygeus muscle.
Why stylopharyngeus is supplied by glossopharyngeal nerve?
The stylopharyngeus is a muscle in the head that stretches between the temporal styloid process and the pharynx….
|Origin||Styloid process (temporal)|
|Insertion||thyroid cartilage (larynx)|
|Nerve||glossopharyngeal nerve (CN IX)|
|Actions||elevate the larynx, elevate the pharynx, swallowing|
What does the glossopharyngeal nerve do?
The glossopharyngeal nerve is the ninth set of 12 cranial nerves (CN IX). It provides motor, parasympathetic and sensory information to your mouth and throat. Among its many functions, the nerve helps raise part of your throat, enabling swallowing.
What Innervates the palatopharyngeus muscle?
Innervation. Palatopharyngeus muscle is innervated by branches of pharyngeal plexus, which in turn receives input from the vagus nerve (CN X).
Is palatopharyngeus paired?
What happens in the 1st stage of swallowing?
The oral phase of swallowing is the first stage of deglutition, and it is a voluntary process. It is also commonly known as the buccal phase. It involves the contraction of the tongue to push the bolus up against the soft palate and then posteriorly into the oropharynx by both the tongue and the soft palate.
What does the stylopharyngeus do?
Stylopharyngeus is a paired muscle that participates in forming the lateral walls of the pharynx. It is one of three longitudinal pharyngeal muscles, the remaining ones being palatopharyngeus and salpingopharyngeus muscles.
All three are located internally to the circular pharyngeal constrictor muscles. The stylopharyngeus muscle extends between the styloid process and several structures of the pharynx and larynx. By elevating the pharynx and larynx, the muscle plays an important role in swallowing (deglutition) and speaking.
What is the plural of stylopharyngei?
plural stylopharyngei\\ -jē-ˌī \\. : a slender muscle that arises from the base of the styloid process of the temporal bone, inserts into the side of the pharynx, and acts with the contralateral muscle in swallowing to increase the transverse diameter of the pharynx by drawing its sides upward and laterally.
What is the palatopharyngeus?
Palatopharyngeus is a longitudinal muscle that extends from the palate to the pharynx. Due to its length this muscle belongs to both the soft palate and pharyngeal muscle groups; Longitudinal muscles of the pharynx – together with salpingopharyngeus and stylopharyngeus.