A&P normal ear quiz worksheet ma fall 2014
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| 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
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| 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
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| 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
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| state structures lined with ceruminous glands and function of cerumen | auditory canal filter the air of pollutants
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| state function of eustachian tube with reference to tympanic membrane | maintain proper pressure in middle ear connects middle ear to throat
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| which structures are responsible for maintenance of equilibrium ?where? | semicircular canal utricle, saccule - inner ear
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| hearing occurs in the | temporal lobes
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| the nerve impulse is carried to the hearing centers of the brain by the | cochlear nerve
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| the cochlear nerve is also referred to as | ace cranial nerves, auditory nerve, acoustic nerve
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| other than hearing, the ear also assist the body in maintaining | balance
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| the function of balance is performed in knee | semi-circular canals, utricle, saccule
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| the three chambers of the ear Rd | outer, middle, and inner chambers
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| the outer ear consists of the | pinna also known as the Oracle
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| the pinna collects sound waves and carries them to the | auditory meatus
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| the auditory meatus is the opening into the | auditory canal
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| the auditory canal is lined with | ceruminous glands and cilia which is real hair
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| this ceruminous glands and silly cilia in the auditory canal serve to: | protect the auditory canal and filter the air entering at this point
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| the structure beginning the middle ear is termed the | tympanic membrane or my Ringo
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| what happens as the sound waves hit the eardrum or tympanic membrane? | It vibrates in response
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| what does the vibration of the tympanic membrane caused | movement of the ossicles
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| where are the ossicles located? | second structure in the middle ear
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| what are the names of the ossicles? | Malleus, incus, stapes
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| 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
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| in the inner ear, the initial area just after the oval window is termed the | vestibule
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| the vestibule leads into the | cochlea
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| the cochlea is a | snail like structure that is filled with auditory fluids
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| at the base of the cochlea we find the structure termed | the organ of Corti which is often described as the organ of hearing
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| in the organ of Corti there are microscopic | cilia like structures which are stimulated by a wave like movement of the auditory fluid
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| the stimulation of the cilia like structures caused by the wave like motion converts into | a nerve impulse
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| what are located in the inner ear and assist in the maintenance of the body's equilibrium? | The semi circular canalS, utricle, saccule
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| the tympanic membrane should of here up here appear | shiny, grey or beige in appearance
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| when the tympanic membrane is red or pink it is an indication of | infection
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| when the tympanic membrane appears dull it is an indication | fluid behind the ear
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| the examination of the ear is performed with an instrument termed | an otoscope
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| the specialist to examine the ear is called an | ENT
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| 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
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| what is the smallest bone in the body | Stapes
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| define tinnitus | ringing in the ears
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| define vertigo | lack of balance causes dizziness
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| define anacusis | lack of hearing
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| define presbycusis | loss of hearing acuity due to aging
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| define otosclerosis | hardening of the shtepise gradual
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| define Meniere's syndrome | volume of auditory fluid too high, cause unknown, abnormal stimulation
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| define auditory agnosia | hearing is just fine but no comprehension of what you hear
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| what can cause auditory agnosia | trauma, closed head injury, stroke
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| describe the appearance of a normal ear drums | shiny, beige
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| describe the appearance of an ear drum that is infected | red or pink
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| describe the appearance of an eardrum with fluid behind it | dull
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| define decibels | volume
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| what is the range of decibels humans can hear? | 20- 20,000 decibels
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| define frequency | pitch,how high or low a sound might be
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| define helix | folded portion of the pinna
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| define otalgia | earache or ear pain
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| define tympanotomy with tubes/myringotomy | incision in eardrum with tubes to relieve fluid buildup and pressure in the ear
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| what group is most likely to need a tympanotomy with tubes? | Young children
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| why do young children need a tympanotomy with tubes? | Because their eustachian tube is shorter and more horizontal
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| the vestibular nerve leads to the brain from the | semi-circular canals
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| the vestibular nerve is responsible for | equilibrium
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