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A & P Ear Quiz

In what part of the brain does hearing occur? Temporal Lopes
What carries the nerve impulse to the Temporal Lopes? Cochlear, 8th cranial, auditory, acoustic nerve. (It is one nerve with four names.)
What part of the ear has the main function of balance instead of hearing? Semi-circular canals
The outer part of the ear is sometimes called the auricle, but usually called what? Pinna
After the outer ear collects sound waves it carries it to what structure? External auditory meatus
The meatus is the opening into what part of the ear? Auditory canal
What is the Auditory Canal lined with? Ceruminous glands & cila
What is the main job of the cerumious glands? Produce a waxy substance call cerumen
What do the hair like cila and cerumen do for hearing? Filter the air and help prevent foreign objects to protect the tympanic membrane.
What is the medical term for ear drum? Tympanic membrane
What are the two medical terms that mean ear drum? Myring/o and tympanic membrane
What is the name for the tiny bones of the middle ear as group? Ossicles
What are the Individual names for the ossicle bones Malleus (hammer), Incus (anvil) and stapes (stirrup)
The movement of the Ossicles causes the in and out fluctuation of what structure? Oval window
What is the name of the upper most part of the outer ear? Helix
What is the medical term for the second part of the inner ear somtimes called entry way? Vestibule
What does sound travel through to get from the vestibule to the snail-like structure? Round window
What is the medical term for the snail-like structure? Cochlea
What is the medical term for the structure often described as the 'organ of hearing'? Organ of Corti
The stimulation of 'cilia-like' strutures by movement of the auditory fluids causes what? The wave like motion of the auditory fluids is converted into the nerve impulse.
What color is a healthy, normal tympanic membrane? Shiny, almost gray or beige.
If the tympanic membrane is pink or red it is a sign of what? Infection
If the tympanic membrane is dull it is a sign of what? Fluid behind the ear.
What instrument is used to examine the ear? Otoscope
What is the name of the specialist that covers treatment of the eye, ear, nose & throat? Otolaryngologist or ENT
What are the structures of the outer ear? Pinna, External auditory meatus, auditory canal
What is the function of the Pinna? To collect sound waves.
What is the fuction of the External Auditory Meatus? It is the opening between the Pinna and the Auditory canal.
What extends from the meatus to the tympanic membrane? Auditory canal
What are the structures of the middle ear? Tympanic membrane and ossicles
Where and what is the tympanic membrane? Thin membrane that is extended across the end of the auditory canal.
What moves to the vibrition of the tympanic membrane? The tiny bones, malleus, incus & stapes collectively known as the ossicles.
At what point do sound waves change from vibration to movement? With the movement of the ossicles.
What are the structures of the inner ear? Oval window, Vestibule, Round Window and Cochlea
What is pushed agaianst / attached to the oval window? Stapes
What is the oval window made of? A membrane that is thinner then the tympanic membrane.
What is the medical term for the entry way between the oval and round windows? Vestibule
The last part of the inner ear is called what? Cochlea
What is the inner most part of the cochlea called? Organ of corti also called the 'organ of hearing'.
What is the names of the fluid inside all parts of the inner ear? Auditory Fluids - Perilymph (meaning around or inside) & Endolmph (meaning within or inside)
The movement of nerve cells that generates eletrical impulses travels where? Inside the organ of Corti than the impulse travels to cochlear nerve then Temporal lope.
What two bones inside the skull protect the structures of the ear? Temporal and Mastoid
What extends from the middle ear to the pharyax (throat)? Eustachian Tube
What is the main function of this tube? Equalize pressure to protect the tympanic membrane.
Which structures are responsible for maintenance of balance and equibrium? Utricle and Saccule
Where are the utricle and saccule located? Semi-circular canal
Trace sound waves from the pinna to the temporal lobe. Pinna, Ext Aud. Meatus, Aud. canal, Tympanic, ossicles, oval window, cochlea, organ of corti, nerve with four names (Cochlear, 8th cranial, auditory, acoustic nerve), temporal lope
How is volume measured? Decibels
What structures of the ear have nothing to do with sound waves? Round window and Vesibule
What part of the ear responds to gravity to tell us what position we are in? Otoliths
What is volume? The number of regularly occuring sound waves.
What equals volume? Intensity / loud
What equals pitch? Frequency (High pitch sounds do not travel as far into the cochlea as low pitch.)
What is the medical term for the science of the eye and its disorders and diseases. Ophthalmology
A physician who specializes in the diagnosis & treatment of the disorders and diseases of the eye is called? Ophthalmologist
Created by: spawmary