Choose an auditory disorder, and indicate where the pathology lies (outer ear, middle ear, inner ear, retrocochlear pathway). (b) Describe this disorder--what are the symptoms, other problems associated with the disorder.

(a) choose one part of the auditory conductive mechanism--the outer ear or middle ear--and describe how sound is transduced (changed from acoustic energy to mechanical energy) through that part of the auditory system, and (b) comment on how the anatomy of that part of the ear enables normal auditory conductive physiology.

1) The maculae of the utricle and saccule with their embedded otoliths and the semicircular canals _______. A) detect changes in the rate at which the head is moving B) determine what direction a sounds are coming from C) amplify soft sounds to improve hearing D) can only detect motion if the head moves at a constant velocity

of the head is most likely 48. A 56-year-old woman gradually loses vision in the temporal parts of the visual fields of both eyes, beginning with the upper quadrants. An MRI of the head is to show a neoplasm in which of the following? A) Anterior perforated substance B) Hypothalamus C) Lateral geniculate body D) Pituitary gland E) Splenium of the corpus callosum OO

State the parts of the ear that have been damaged in someone with a) nerve deafness b) conduction deafness

a) Consider a patient who has been exposed to an ototoxic drug that has caused the death of the outer hair cells in the cochlea but has left the inner hair cells unaffected. What sort of hearing loss is the person likely to experience and what sort of hearing device could assist them? Explain the reasons for your answer based upon how the inner ear functions. b) Consider a person who has a partial loss of myelin in their auditory nerve. What effect would the loss of myelin have upon the ability of this person to perceive speech and would either a hearing aid or cochlear implant provide any benefit to their hearing ability? Explain the reasons for your answer based upon how the inner ear and auditory pathway function. I c) Explain the difference in information that can be provided by a cochlear implant consisting of a single electrode compared to a cochlear implant with many electrodes. What type of neural code is provided in each case? What type of musical sounds could be well…

the sound of a vibrating tuning fork is perceived longer when the stern of the fork is placed against the mastoid process of the temporal bone than when the lines are placed near the patient's ear. This finding is compatible with damage to which of the following structures ? A) cochlea B) cochlear nucleus C) ossicles D) primary auditory cortex E) vestibulocochlear nerve

A 61-year-old woman has had difficulty hearing since having a cerebral infarction 1 day ago. Physical examination shows difficulty locating sounds on the right whenthe sound is presented to both ears The most likelv cause is a cerebral infarction involving which of the following structures on the left?A) Inferior temporal gyrusB) Lateral geniculate nucleusC) Medial geniculate nucleusD) Middle temporal gyrusE) Pulvinar

Labyrinthitis is an inflammation of the inner ear. What symptoms would you expect in a patient with this disorder?

1.) Which of the following statements about neural impulses leaving the inner ear is true? A.) They are carried over the auditory nerves to the temporal lobes of the brain . B.) They are carried over the optic nerves to the temporal lobes of the brain. C.) They are carried over the auditory nerves to the occipital lobes of the brain. D.) They are carried over the optic nerves to the occipital lobes of the brain. 2.) Which of the following correctly identifies the sequence of actions after movements of the stapes strike the oval window on the fluid-filled cochlea? A.) basilar membrane movesà pressure waves à hair cells relay message à stereocilia bend against tectorial membrane à auditory nerve B.) basilar membrane moves åpressure waves à stercocilia bend against tectorial membrane cells relay message à auditory nerve C.)pressure waves…