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 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.

What happens if the glossopharyngeal nerve is damaged?

Glossopharyngeal nerve lesions produce difficulty swallowing; impairment of taste over the posterior one-third of the tongue and palate; impaired sensation over the posterior one-third of the tongue, palate, and pharynx; an absent gag reflex; and dysfunction of the parotid gland.

Is the glossopharyngeal nerve involved in swallowing?

The glossopharyngeal and vagus nerves innervate the muscles of the pharynx and larynx. These are involved in swallowing and speaking.

What does glossopharyngeal nerve do with breathing?

Glossopharyngeal breathing (GBP), also known as “frog breathing, is a positive pressure breathing method using muscles of mouth and pharynx to push volume of air (gulps) into the lungs.

What is the function of the vagus nerve quizlet?

Innervates the skin of the external acoustic meatus and tympanic membrane, plus the internal surfaces of the laryngopharynx and larynx. Provides visceral sensation to the heart and abdominal viscera. Also provides sensory fibers to the meninges.

What does the motor portion of the glossopharyngeal nerve cranial nerve IX innervate quizlet?

Motor Nerve innervate stylopharyngeal muscle of the pharynx for swallowing. – Motor nucleus located in brain stem. – Motor axons travel through jugular foramen then the stylopharyngeal muscle of pharynx. Passes through both superior and inferior (petrosal) ganglion to get there.

What nerve controls the throat?

The glossopharyngeal nerve helps move the muscles of the throat and carries information from the throat, tonsils, and tongue to the brain.

Is GPN life threatening?

Most common cause is vascular compression of glossopharyngeal nerve. Glossopharyngeal neuralgia is life-threatening condition because it is associated with cardiac arrest, hypotension, syncope and weight loss. Treatment with carbamazepine is affected in patients with cardiovascular manifestations.

What causes damage to the glossopharyngeal nerve?

Most often the damage is from a blood vessel compressing the nerve. Other causes include aging, multiple sclerosis, and nearby tumors.

What muscles are innervated by glossopharyngeal nerve?

The axons that belong to the glossopharyngeal nerve provide motor innervation to the stylopharyngeus muscle and the superior pharyngeal constrictor muscle.

Where does the glossopharyngeal nerve arise?

medulla oblongata

The glossopharyngeal nerve is the 9th cranial nerve (CN IX). It is one of the four cranial nerves that has sensory, motor, and parasympathetic functions. It originates from the medulla oblongata and terminates in the pharynx.

What is the lingual nerve?

The lingual nerve is one of the sensory branches of the mandibular division of the trigeminal nerve. [5] It contains general somatic afferent nerve fibers and, after chorda tympani joins it, also carries general visceral efferent nerve fibers and special visceral afferent fibers.

What cranial nerve is glossopharyngeal?


The glossopharyngeal nerve is the 9th cranial nerve (CN IX). It is one of the four cranial nerves that has sensory, motor, and parasympathetic functions.

What two nerves do not arise from the brain stem?

The olfactory nerve is the shortest of the 12 cranial nerves and only one of two cranial nerves (the other being the optic nerve) that do not join with the brainstem.

What nerves affect eyes?

Six cranial nerves innervate motor, sensory, and autonomic structures in the eyes. The six cranial nerves are the optic nerve (CN II), oculomotor nerve (CN III), trochlear nerve (CN IV), trigeminal nerve (CN V), abducens nerve (CN VI), and facial nerve (CN VII).

What nerve controls sense of smell?

Olfactory nerve

Olfactory nerve (CN I)
The olfactory nerve is a solely sensory nerve and conveys the sense of smell. Its receptors are located in the olfactory mucosa under the roof of the nasal cavity.

What nerve controls the nose?

Sensation of the nose comes from the ophthalmic (V1) and maxillary (V2) divisions of the trigeminal nerve.

Which nerve connects the nose to the brain?

the Olfactory Nerve

The Anatomy of the Olfactory Nerve
Actually a pair of cranial nerves, the olfactory nerve transmits information to the brain from smell receptors in the nose. The olfactory nerve is sometimes referred to as the first cranial nerve, or CN1.