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Anatomy of Audiology Test

Enter the letter for the matching Answer
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1.
Outer hair cells sit in cup shape indentation of _____ cells.
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2.
cochlear nerve (cochlear branch of the VIII) and Vestibular nerve together create the ______
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3.
In transduction the ear tranduces sound to mechanical energy in the form of vibrations of the _____ ________.
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4.
what is the resonant frequency of the ear canal?
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5.
Other nuclei in the pathway are:
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6.
What forms the ionic barrier between endolymph and perilymph?
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7.
The main part of the TM, that makes up the tense portion, is called
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8.
Before entering the meatus it is joined by the two branches of the vestibular nerve; collectively the ____ and ____ nerves from the VIII cranial nerve
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9.
Each turn of the cochlea is divided into 3 sections by membrane, these are called
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10.
Above head of malleus and most incus is called _______ _______.
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11.
area with relatively low impedance
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12.
However it does not move with an equal stiffness and the traveling wave is not equally ______ along membrane
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13.
When cilia go back to original position ___ channels close.
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14.
A branch of the VII cranial facial nerve, which runs just behind manubrium of malleus is called the ______ ________. It carries taste from front of tongue (anterior 2/3 taste sensation) to brain and also has nerves that innervate the salivary glands.
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15.
The _____ of the malleus attaches to TM on outer side and makes it into a cone shape which has a tip that is called the ______.
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16.
Nerve fibers course from the MGB along a pathway called the _________ _________ to the auditory _______.
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17.
which part is mainly opened by the tensor palatini (forms part of soft palate) and connects to sphenoid bone and hooks at pterygoid hamulus?
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18.
the dotted line for a traveling wave that is plotted for the maximum displacement of a tone is called the
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19.
What causes a traveling wave? ______ and _______
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20.
Another name for the nasopharynx or auditory tube is the
A.
compressions and rarefactions (takes 5 ms from base > apex)
B.
K+
C.
Chora tympani
D.
cartilaginous part
E.
auditory radiations, auditory cortex
F.
1) Scala vestibuli 2) Scala meida (cochlear duct) 3) Scala tympani
G.
reticular lamina
H.
envelope
I.
cochlear partition
J.
Pars Tensa
K.
inferior colliculus and medial geniculate body (MGB)
L.
Eustachian tube
M.
manubrium, umbo (umbrella)
N.
cranial nerve VIII (Auditory nerve)
O.
deter
P.
displaced
Q.
vestibular and cochlear
R.
air
S.
2,000 Hz
T.
epitympanic recess (aka attic)
Type the Answer that corresponds to the displayed Question.
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21.
The whole below the promontory is called the ______ _______.
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22.
nerves from cochlear nerve run through this ______ _______ _______
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23.
K+ results in positive charge of +____mV above reticular lamina
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24.
What structure connects Scala vestibuli and Scala tympani?
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25.
Inner and outer hair cells are bathed in
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26.
The SOC is known to be involved in the _______ of sound.
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27.
The cochlea is not simply a passive device receiving sound energy, rather it is an ____ system, which adds _____ energy to the transduction process
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28.
The Organ of Corti sits on top of Basilar membrane and has holes that are called ______ ________. These lead from spiral lamina into scala media
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29.
carries info towards CNS of brain
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30.
This seperates ME Cavity from cranial cavity, a thin sheet of bone. If infected, get meningitis, life threatening disease.

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