Term
|
Definition
| Branch of healthcare devoted to the study, diagnosis, treatment and prevention of hearing disorders |
|
|
Term
|
Definition
| Healthcare professional that provides services related to the prevention, evaluation, and rehabilitation of hearing impairment and its associated communication disorder |
|
|
Term
|
Definition
| Physician specializing in the diagnosis and treatment of diseases of the ear, nose, and throat, including diseases of related structures of the head and neck |
|
|
Term
|
Definition
| Physician specializing in the diagnosis and treatment of ear disease |
|
|
Term
|
Definition
| Description or study of normal structures of an organism |
|
|
Term
|
Definition
| The study of the function of a structure of an organism |
|
|
Term
|
Definition
| structure that provides a specific function |
|
|
Term
|
Definition
| Provide the sense of hearing and balance |
|
|
Term
|
Definition
|
|
Term
| Processiong of auditory information occurs in the.... |
|
Definition
|
|
Term
| Peripheral auditory system includes: |
|
Definition
| Outer ear, middle ear, inner ear and VIII nerve (hearing mechanism) |
|
|
Term
| Central Auditory Nervous System includes: |
|
Definition
| Auditory nuclei and their pathways (processing mechanism) |
|
|
Term
| When we test hearing we are testing (which system) |
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
| push or pull on an object |
|
|
Term
|
Definition
| Property of an object to stay at rest or to move if acted on by a force |
|
|
Term
| Sound has to have 3 things: |
|
Definition
|
|
Term
|
Definition
| A vibration of air molecules |
|
|
Term
| The middle ear transduces acoustical energy into.... |
|
Definition
|
|
Term
| The inner ear cochlea transduces mechanical energy into..... |
|
Definition
|
|
Term
| The hair cells of the cochlea transduce hydromechanical energy into... |
|
Definition
|
|
Term
| What are the two types of fluid in the body? |
|
Definition
| Intra cellular and extra cellular |
|
|
Term
|
Definition
| Skin covered elastic cartilage. Helps localize sound (especially high frequencies) |
|
|
Term
|
Definition
| About 1" long and S shaped for protection. Acts as a high pass filter(quarter wave length resonator) |
|
|
Term
|
Definition
| cartilage, has glands that produce ceruminous (sweat) and sebacious (oil)-byproduct is cerumen (earwax) |
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
| Air to fluid impedance mismatch |
|
|
Term
| Middle Ear Cavity/Tympanum |
|
Definition
| six sided box that houses the ossicles and their ligaments, the tendons of the middle ear muscles and the eustachian tube |
|
|
Term
|
Definition
| -Normal appearance is translucent and pearly gray. Sits at a 55 degree angle. |
|
|
Term
|
Definition
| Manubrium of malleus at 1:00 and cone of light at 5:00 |
|
|
Term
|
Definition
| Manubrium of malleus at 11:00 and cone of light at 7:00 |
|
|
Term
|
Definition
| composed of the manubrium and head |
|
|
Term
|
Definition
| composed of short process and long process |
|
|
Term
|
Definition
| composed of the neck, crura and footplate |
|
|
Term
|
Definition
| inserts on top of the manubrium of the malleus and is innervated by the V (trigeminal) nerve-pain and temperature-ME |
|
|
Term
|
Definition
inserts on the neck of the stapes and is innervated by the VII (facial nerve)-ME
-Contracts to loud sounds |
|
|
Term
|
Definition
| Anything through which an action can take force-gas, liquid and solid |
|
|
Term
|
Definition
| resistance to energy flow |
|
|
Term
| How much energy is lost when air meets fluid |
|
Definition
|
|
Term
|
Definition
| Increase the pressure at the stapes footplate so that it moves in and out of the oval window with more force |
|
|
Term
|
Definition
| increase in pressure at the oval window that results from the TM and stapes footplate having different areas (TM is 17 times larger than footplate-P=F/A) |
|
|
Term
|
Definition
| Increase in pressure gained from the ossicular chain acting as a lever(manubrium is longer than the long process of the incus-more force is transferred to the long process of the incus) |
|
|
Term
|
Definition
| Represents the efficiency of the middle ear transformer for the different frequencies |
|
|
Term
|
Definition
|
|
Term
|
Definition
| have the ability to store energy in a mechanical system |
|
|
Term
|
Definition
store higher frequency energy and allow lower frequency energy to readily pass through the system.
-directly related to frequency |
|
|
Term
|
Definition
sotre lower frequency energy and allow higher frequency energy to readily pass through
-indirectly related to frequency |
|
|
Term
|
Definition
Runs from the floor of the ME cavity to the nasopharynx (back of throat)
-Functions to drain ME fluid and equalize atmospheric pressure with ME pressure |
|
|
Term
| Normal resting state of Eustachian tube and how to we equalize pressure |
|
Definition
|
|
Term
| Ways to open the Eustachian Tube |
|
Definition
| Swallow, realign jaw, yawn, pinch nose and blow, pinch nose and swallow, chew gum |
|
|
Term
|
Definition
| innervate the Eustachian Tube-helps to position it |
|
|
Term
|
Definition
| innervate the Eustachian Tube-helps it to open and close |
|
|
Term
|
Definition
| Osseous Labyrinth, Vestibule, Membranous Labyrinth, Cochlea, Semi Circular Canals |
|
|
Term
|
Definition
control the vestibular system (balance)
-fluid filled, lie perpendicular to each other
-when stimulated, fluid moves, causing stimulation of cells which causes VIII to fire |
|
|
Term
|
Definition
Opening to the IE
-contains the oval and round windows
-contains perilymph |
|
|
Term
|
Definition
| -high concentration of sodium chloride (salt water) |
|
|
Term
|
Definition
| Releases the pressure that gets built up |
|
|
Term
|
Definition
Spaces and canals within the temporal bone that house the IE structures
-contains perilymph |
|
|
Term
|
Definition
AKA scala media
-soft tissue that follows the shape of the osseous labyrinth and is enclosed within the osseous labyrinth
-contains endolymph |
|
|
Term
|
Definition
| Type of fluid with a high concentration of Potassium Chloride(fluid that makes you hear) |
|
|
Term
|
Definition
Snail shaped structure with 2 and 3/4 turns
-tranduces mechanical energy into hydromechanical energy
-widest at the base and narrowest at the apex |
|
|
Term
|
Definition
Central core of the cochlea
-VIII fibers and blood vessels run through it |
|
|
Term
|
Definition
| Top chamber, part of the osseous labyrinth, contains perilymph, contacts with ME at the oval window |
|
|
Term
|
Definition
| Middle chamber, composed of endolymph, contains the Organ of Corti |
|
|
Term
|
Definition
| Bottom chamber, part of the osseous labyrinth, contains perilymph, contacts with ME at the round window in the vestibule |
|
|
Term
|
Definition
| 32mm long, narrowest at the base and widest at the apex, organ of corti sits on top of it |
|
|
Term
|
Definition
| Sensory end organ of hearing |
|
|
Term
|
Definition
| transduce cochlear hydromechanical energy into chemical-electro energy-3500 |
|
|
Term
| What shape are the cilia on the IHC? |
|
Definition
|
|
Term
|
Definition
| transduce cohclear hydromechanical energy into chemical electro energy-3 rows of 1200, thinner than the IHC |
|
|
Term
| What shape are the cilia on the OHC? |
|
Definition
|
|
Term
| Rods of Corti/Pillar Cells |
|
Definition
| Seperate the IHCs from the OHCs, form the tunnel of corti |
|
|
Term
|
Definition
| Gel like structure that courses over the top of the hair cells |
|
|
Term
|
Definition
| Hair cell stimulation results in the VIII firing. Basilar membrane mechanics/movement dictates which hair cells are stimulated |
|
|
Term
| The widening of the basilar membrane results in a.... |
|
Definition
| Gradation in stiffness-each segment becomes less and less stiff |
|
|
Term
| Higher frequencies are coded in the... |
|
Definition
|
|
Term
|
Definition
| existence of a spatial representation of frequency |
|
|
Term
|
Definition
| Connect the rows of cilia |
|
|
Term
|
Definition
| two objects move in a parallel plane but don't touch each other |
|
|
Term
| OHC shear as a result of... |
|
Definition
| relative movement between the tectorial and basilar membrane when the basilar membrane displaces |
|
|
Term
| IHC shear as a result of... |
|
Definition
| drag imposed on the surrounding cochlear fluids that results from velocity/rate changes during basilar membrane displacement |
|
|
Term
|
Definition
|
|
Term
|
Definition
| Consists of a cell body, several dendrites and an axon, communicate through synapses |
|
|
Term
|
Definition
| Innervate the inner hair cells |
|
|
Term
|
Definition
| Innervate outer hair cells |
|
|
Term
| How many neural fibers innervate one IHC? |
|
Definition
|
|
Term
| How many OHC's share one neural fiber? |
|
Definition
|
|
Term
| Type 1/Radial Neurons are responsible for... |
|
Definition
| generating the VII AP and subsequent CANS transmission processing of auditory information-most of our encoding abilities are done by the IHCs |
|
|
Term
|
Definition
| 60-65dB and are responsible for generating the VIII action potential |
|
|
Term
|
Definition
| When the tip links pull/stretch the OHCs and physically change the length/shape |
|
|
