Auditory: What is the function of cerumen Which muscles protect the inner ear fr
ID: 3509165 • Letter: A
Question
Auditory: What is the function of cerumen Which muscles protect the inner ear from prolonged loud noises? How do they perform this task? Why can't they protect the inner ear from damage by sudden loud noise like a firecracker? How can an infection of the nasal cavity lead to otitis media? What is the name of the fluid contained in the bony labyrinth? In the membranous labyrinth? Which two membranous chambers are separated by the basilar membrane? Where is the tectorial membrane located? Where are the stereocilia located? What happens to the stereocilia when your ears are exposed repeatedly (or even once) to loud noises? Would this lead to a nerve (sensorineural) or conduction deafness? Explain. What structural differences exist in the cochlea that allow for a range of sound pitch to be heard? How are louder sounds detected in the cochlea?Explanation / Answer
Q1-The function of cerumen is to trap tiny bits of dirt or other tiny foreign materials and move this debris outward, away from the eardrum. It is the ear's self-cleaning mechanism.
Q2-In response to sustained loud sounds, muscle tension tightens the tympanic membrane and, acting through the tendon connecting the hammer and anvil, repositions the ossicles to pull the stirrup back, lessening the transfer of force to the oval window of the inner ear.
Q3-Otitis Media is an infection of the middle ear and is usually caused by bacteria or viruses. A small tube called the Eustachian tube connects the middle ear with the back of the throat and nose. In the infant and small child, the tube is shorter and more horizontal than in the adult, and provides a ready path for bacteria and viruses to gain entrance into the middle ear and not drain out.
Q4-thwe bony labrinth contains flid called perilymph.The membranous labyrinth contains fluid called endolymph
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