AdministratorWhat is the function of cranial nerve 8?
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.
What happens if cranial nerve 8 is damaged?
CN VIII pathology can result from direct trauma, congenital malformations, tumor formation, infection, and vascular injury. Presenting symptoms include vertigo, nystagmus, tinnitus, and sensorineural hearing loss.
How do you test the function of the vestibulocochlear nerve?
Evaluation of the vestibulocochlear nerve, therefore, involves testing of the hearing and balance. Otoscopic inspection of the auditory canals and tympanic membranes is done, as well as assessment of each ear’s auditory acuity. Weber and Rinne tests are performed using a 512-Hz tuning fork.
What is the purpose of a cranial nerve examination?
The cranial nerve exam is a type of neurological examination. It is used to identify problems with the cranial nerves by physical examination. It has nine components. Each test is designed to assess the status of one or more of the twelve cranial nerves (I-XII).
Where is the 8th cranial nerve?
The 8th cranial nerve runs between the base of the pons (the middle portion of the brainstem) and medulla oblongata (the lower portion of the brainstem). This junction between the pons, medulla, and cerebellum that contains the 8th nerve is called the cerebellopontine angle.
Which is the primary function of the vestibulocochlear nerve?
vestibulocochlear nerve, also called Auditory Nerve, Acoustic Nerve, or Eighth Cranial Nerve, nerve in the human ear, serving the organs of equilibrium and of hearing.
Which cortical sensory function would the nurse assess by drawing a number 8 on the patient’s hand?
Which cortical sensory function would the nurse assess by drawing a number 8 on the patient’s hand? Graphesthesia, or the ability to identify writing on the skin, is the cortical sensory function assessed by drawing a number 8 on the patient’s hand.
Where is the eighth cranial nerve located?
Which cranial nerves have sensory function?
There are three cranial nerves with primarily sensory function. Link to Sensory. Cranial nerve I, Olfactory, modulates smell, cranial nerve II, Optic,modulates vision. Cranial nerve VIII, Acoustovestibular, modulates hearing and balance.