What does the Glossopharyngeal supply?

What does the Glossopharyngeal supply?

The glossopharyngeal nerve carries sensory, efferent motor, and parasympathetic fibers. Its branches consist of tympanic, tonsillar, stylopharyngeal, carotid sinus nerve, branches to the tongue, lingual branches, and a communicating branch to cranial nerve X (vagus nerve).

How do you treat Gpn?

The first-line treatment for GPN is pharmacological and consists mainly of anticonvulsant medications such as carbamazepine, gabapentin, oxcarbazepine, or pregabalin. In addition, some antidepressants such as amitriptyline can be helpful either alone or in combination with the anticonvulsant medications.

What does the glossopharyngeal nerve sense?

Involvement in Taste and Swallowing The glossopharyngeal nerve, which is also called the ninth cranial nerve, has both sensory (sensation) functions and motor (movement) functions in the body, as well as specialized sensory function and parasympathetic function.

What does CN 9 innervate?

ArticleMedia. The glossopharyngeal nerve (ninth cranial nerve, CN IX, Latin: nervus glossopharyngeus) is a mixed cranial nerve. The glossopharyngeal nerve provides motor innervation to the stylopharyngeus muscle and the superior constrictor pharyngeal muscle.

What is the major function of the glossopharyngeal nerve?

The glossopharyngeal nerve (cranial nerve IX) is responsible for swallowing and the gag reflex, along with other functions. The glossopharyngeal nerve receives input from the general and special sensory fibers in the back of the throat.

What is the function of the glossopharyngeal nerve quizlet?

It provides sensory information about taste, sensation to the tongue and pharynx and information from chemo/baro-receptors in the carotid artery.

How do you get rid of Glossopharyngeal neuralgia?

The most effective drugs are antiseizure medicines such as carbamazepine. Antidepressants may help certain people. In severe cases, when pain is difficult to treat, surgery to take pressure off the glossopharyngeal nerve may be needed. This is called microvascular decompression.

How long does GPN last?

Typical GPN is characterized by recurring paroxysmal attacks of severe unilateral pain in the area of the glossopharyngeal nerve distribution. The pain is often described as electric shock-like, shooting, or stabbing, and lasts for a few seconds to 2 minutes.

What does glossopharyngeal nerve control?

There are a number of functions of the glossopharyngeal nerve. It controls muscles in the oral cavity and upper throat, as well as part of the sense of taste and the production of saliva. Along with taste, the glossopharyngeal nerve relays general sensations from the pharyngeal walls.

What nerve controls sense of smell?

The olfactory nerve is the first cranial nerve (CN I). It is a sensory nerve that functions for the sense of smell. Olfaction is phylogenetically referred to as the oldest of the senses. It is carried out through special visceral afferent nerve.

Where does the glossopharyngeal nerve innervate?

stylopharyngeus muscle
Containing both sensory and motor components, the glossopharyngeal nerve provides somatic motor innervation to the stylopharyngeus muscle, visceral motor innervation to the parotid gland, and carries afferent sensory fibers from the posterior third of the tongue, pharynx, and tympanic cavity.

What muscles does vagus nerve innervate?

How is the glossopharyngeal nerve related to the vagus nerve?

In general, the field of innervation that belongs to the glossopharyngeal nerve is tightly connected to the branches of the vagus nerve and the accessory nerve. All of these three cranial nerves are involved in the complex and important functions of the body, such as blood pressure regulation, heart rate, breathing, swallowing and vomiting.

How is the integrity of the glossopharyngeal nerve tested?

Examination. The clinician may also test the posterior one-third of the tongue with bitter and sour substances to evaluate for impairment of taste. The integrity of the glossopharyngeal nerve may be evaluated by testing the patient’s general sensation and that of taste on the posterior third of the tongue.

What are the symptoms of vagal stimulation in glossopharyngeal neuralgia?

A subset of patients with glossopharyngeal neuralgia also experienced symptoms of excessive vagal stimulation during attacks, with symptoms such as bradycardia, hypotension, syncope, seizures, or cardiac arrest.[6] 

Where is the glossopharyngeal nerve located in the ear?

The glossopharyngeal nerve plays a sensory role in numerous important structures. In the middle ear, via its tympanic branch, it becomes part of the tympanic plexus. That’s a network of nerves that provides sensory function to the middle ear, the eustachian tube, and the internal surface of the tympanic membrane (your eardrum).