What is the function of the cochlear nerve?
Table of Contents
What is the function of the cochlear nerve?
The cochlear nerve is primarily responsible for transmitting the electrical impulses generated for hearing and localization of sound. The nerve has its origin in the bipolar cells of the spiral ganglion of the cochlea, which is located adjacent to the inner margin of the bony spiral lamina.
What is the function of the 8th cranial nerve?
Cranial nerve VIII brings sound and information about one’s position and movement in space into the brain. The auditory and vestibular systems subserve several functions basic to clinical medicine and to psychiatry.
Which cranial nerves affect hearing?
CN VIII
The vestibulocochlear nerve, also known as cranial nerve eight (CN VIII), consists of the vestibular and cochlear nerves.
What are the two functions of the auditory nerve?
The auditory nerve, also known as the vestibulocochlear nerve or the statoacoustic nerve, is responsible for auditory function and balance. It is made up of two other nerves: the cochlear, which carries information about sound, and the vestibular, which does the same with information about balance.
What does cranial nerve 7 affect?
The two 7th Cranial Nerves (CN VII) are located on either side of the brainstem, at the top of the medulla. They are mixed cranial nerves with BOTH sensory and motor function. CN VII controls the face and is mainly FACE MOVEMENT with some face sensation.
Does damage to the vestibulocochlear nerve cause hearing loss?
Neurologic Complications After Traumatic Brain Injury The vestibulocochlear nerve provides for hearing and balance. Patients with this nerve injury oftentimes have vertigo, tinnitus, and hearing impairment. Hearing loss due to TBIs is more frequently a sensory loss than a conductive loss.
What nerve controls hearing and balance?
The vestibulocochlear nerve, also known as cranial nerve eight (CN VIII), consists of the vestibular and cochlear nerves.
What is the function of anvil and hammer?
…the malleus, or hammer, the incus, or anvil, and the stapes, or stirrup. Together they form a short chain that crosses the middle ear and transmits vibrations caused by sound waves from the eardrum membrane to the liquid of the inner ear.
Which nerve is purely motor?
Hence, the correct answer is ‘Abducens’.
What sense is associated with cranial 8?
It is responsible for the special senses of hearing (via the cochlear nerve), and balance (via the vestibular nerve).
Is cranial nerve 7 motor or sensory?
Table of cranial nerves
| No. | Name | Sensory, motor, or both |
|---|---|---|
| VI | Abducens | Mainly motor |
| VII | Facial | Both sensory and motor |
| VIII | Vestibulocochlear In older texts: auditory, acoustic. | Mostly sensory |
| IX | Glossopharyngeal | Both sensory and motor |
What is seventh nerve palsy?
Commonly referred to as Bell’s Palsy, 7th Nerve Palsy causes sudden weakness or paralysis of the muscles on one side of the face. The condition can be caused by a number of factors, including an immune disorder, shingles, lyme disease and other viruses, and in some cases is congenital.
Which cranial nerve affects balance?
The vestibular nerve
The vestibular nerve is primarily responsible for maintaining body balance and eye movements, while the cochlear nerve is responsible for hearing.
