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Carnegie A&P ear

A&P normal ear quiz worksheet ma fall 2014

state structures of outer ear and function of each Pinna or Auricle (first part of the outer ear) collects sound waves; auditory meatus: the opening the sound waves enter through; auditory canal
state structures of middle ear and function of each tympanic membrane (myringo) vibrate in response to sound waves causes three little bones to move; ossicles (tiny bones) - malleus, incus, stapes
state structures of inner ear and function of each oval window, round window,vestibule, cochlea, organ of corti hearing,semi circular canal, utricle, saccule for balance and equilibrium
state structures lined with ceruminous glands and function of cerumen auditory canal filter the air of pollutants
state function of eustachian tube with reference to tympanic membrane maintain proper pressure in middle ear connects middle ear to throat
which structures are responsible for maintenance of equilibrium ?where? semicircular canal utricle, saccule - inner ear
hearing occurs in the temporal lobes
the nerve impulse is carried to the hearing centers of the brain by the cochlear nerve
the cochlear nerve is also referred to as ace cranial nerves, auditory nerve, acoustic nerve
other than hearing, the ear also assist the body in maintaining balance
the function of balance is performed in knee semi-circular canals, utricle, saccule
the three chambers of the ear Rd outer, middle, and inner chambers
the outer ear consists of the pinna also known as the Oracle
the pinna collects sound waves and carries them to the auditory meatus
the auditory meatus is the opening into the auditory canal
the auditory canal is lined with ceruminous glands and cilia which is real hair
this ceruminous glands and silly cilia in the auditory canal serve to: protect the auditory canal and filter the air entering at this point
the structure beginning the middle ear is termed the tympanic membrane or my Ringo
what happens as the sound waves hit the eardrum or tympanic membrane? It vibrates in response
what does the vibration of the tympanic membrane caused movement of the ossicles
where are the ossicles located? second structure in the middle ear
what are the names of the ossicles? Malleus, incus, stapes
what does the movement of the ossicles cause? the In and Out fluctuation of the oval window which is the first structure of the inner ear
in the inner ear, the initial area just after the oval window is termed the vestibule
the vestibule leads into the cochlea
the cochlea is a snail like structure that is filled with auditory fluids
at the base of the cochlea we find the structure termed the organ of Corti which is often described as the organ of hearing
in the organ of Corti there are microscopic cilia like structures which are stimulated by a wave like movement of the auditory fluid
the stimulation of the cilia like structures caused by the wave like motion converts into a nerve impulse
what are located in the inner ear and assist in the maintenance of the body's equilibrium? The semi circular canalS, utricle, saccule
the tympanic membrane should of here up here appear shiny, grey or beige in appearance
when the tympanic membrane is red or pink it is an indication of infection
when the tympanic membrane appears dull it is an indication fluid behind the ear
the examination of the ear is performed with an instrument termed an otoscope
the specialist to examine the ear is called an ENT
trace sound waves from pinna to temporal lobe of the brain pinna (Auricle), meatus, auditory canal, tympanic membrane (myringo), auditory ossicles, Oval window, round window, vestibule, cochlea, organ of corti, cochlear nerve, temporal lobes
what is the smallest bone in the body Stapes
define tinnitus ringing in the ears
define vertigo lack of balance causes dizziness
define anacusis lack of hearing
define presbycusis loss of hearing acuity due to aging
define otosclerosis hardening of the shtepise gradual
define Meniere's syndrome volume of auditory fluid too high, cause unknown, abnormal stimulation
define auditory agnosia hearing is just fine but no comprehension of what you hear
what can cause auditory agnosia trauma, closed head injury, stroke
describe the appearance of a normal ear drums shiny, beige
describe the appearance of an ear drum that is infected red or pink
describe the appearance of an eardrum with fluid behind it dull
define decibels volume
what is the range of decibels humans can hear? 20- 20,000 decibels
define frequency pitch,how high or low a sound might be
define helix folded portion of the pinna
define otalgia earache or ear pain
define tympanotomy with tubes/myringotomy incision in eardrum with tubes to relieve fluid buildup and pressure in the ear
what group is most likely to need a tympanotomy with tubes? Young children
why do young children need a tympanotomy with tubes? Because their eustachian tube is shorter and more horizontal
the vestibular nerve leads to the brain from the semi-circular canals
the vestibular nerve is responsible for equilibrium
Created by: ma2b