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Carnegie A&P ear
A&P normal ear quiz worksheet ma fall 2014
| Question | Answer |
|---|---|
| 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
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