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Recruitment is the sensitivity to sound that anyone can suffer from.
Presbycusis is hearing loss due to aging.
What are the 4 different means of conducting sound to the brain?
Acoustic, mechanical, air, chemical
Air, hydraulic, chemical, electrical
Vibration, fluid, chemical, electrical
Acoustic, mechanical, hydraulic, electrical
None of the above
Cerumen has its origin in the?
Cochlea
External auditory meatus
Middle ear
Tympanic membrane
Epitympanic recess
The tympanic membrane receives acoustic energy in the form of sound waves and changes or transduces it to?
Electrical energy
Mechanical energy
Potential energy
Hydraulic energy
Kinetic energy
The ear is most accurately considered to be the?
Organ of hearing
Outer ear
Organ of equilibrium
Pinna
Both a and c
The normal condition of the Eustachian tube is?
Usually open
Usually closed
Usually about equally open and closed in time
Opened only by accident
Closed only by accident
The fluid that fills the cochlear duct is?
Perilymph
Endolymph
Cerebrospinal fluid
Both a and b
The general frequency localization on the basilar membrane is?
Lows at the basal end and highs at the apical end
Both lows and highs represented all along the basilar membrane
Highs at the basal end and lows at the apical end
Highs at the basal end and lows all along the basilar membrane
Lows at the basal end and highs all along the basilar membrane
In the inner ear, the transmitting medium for sound is considered to be?
Air
Bone
Fluid
Solid
All of the above
The ratio of the difference in area size between the tympanic membrane and the oval window is?
1:1
3:1
6:1
17:1
27:1
The most protruding landmark on the tympanic membrane is the?
Umbo
The anterior and posterior malleolar folds
Anterior process of the malleolus
The lateral process of the malleolus
The annulus
The epitympanic recess:
Is also call the attic
Is mostly filled by the head of the malleus and much of the incus
Is the retraction of the eardrum caused by lack of pressure
Both b and c
Which of the following does not relate to the inner ear?
Semicircular canals
Vestibule
ossicles
Which of the following does not relate to the cochlea?
Helicotrema
Organ of corti
Basilar membrane
The horizontal or lateral canal
Modiolus
The two basic parts of a sound wave are?
frequency and amplitude
spectra and pitch
period and wave length
compression and rarefaction
loudness and intensity
Approximately how many hair cells are there in the organ of corti?
About 5000 inner hair cells and about 10,000 outer hair cells
About 12,000 inner hair cells and about 20,000 outer hair cells
About 500 inner hair cells and about 1,000 outer hair cells
About 100 inner hair cells and about 100 outer hair cells
About 20,000 inner hair cells and about 1500 outer hair cells
The essential parts of the organs of hearing and balance are situated in:
The mastoid bone
The tympanic bone
The meatal bone
The temporal bone
The cochlear bone
The annular ligament:
Suspends the auditory ossicles within the middle ear cavity
Connects the tympanic membrane to the external auditory meatus walls
Is that ligament which annually develops to age 17-18
Fastens the footplate of the stapes to the bony wall of the oval window
Is responsible for maintaining tension on the tympanic membrane
How many octaves lie between 500 Hz and 8000 Hz?
2
4
6
8
10
The frequency of a pure tone is determined by?
the amplitude of the vibrator
friction acting on the vibrator
the spectrum of the pure tone
the intensity of the pure tone
the number of complete cycles occurring per second
If two tones of the same frequency and intensity are 180 degrees out of phase:
their intensities are additive and resonance occurs
a different tone will be heard
no sound will be heard
their collective intensity will be half the original intensity
the frequency will be halved
Pitch is to frequency as:
loudness is to frequency
loudness is to intensity
loudness is to wavelength
loudness is to pitch
loudness is to spectrum
Essentials necessary for sound to be created and heard are?
vibrator, medium, listener
vibrator, medium, force
vibrator, medium, force, listener
vibrator, force, listener
force, medium, listener
The relationship between speech power and speech intelligibility is?
low frequencies have more intelligibility, but less power
low frequencies have less intelligibility and less power
high frequencies have more intelligibility and more power
high frequencies have less intelligibility and less power
high frequencies have more intelligibility, but less power
The frequency limits of the audible area of man range from:
1 to 10,000 Hz
125 to 8000 Hz
250 to 8000 Hz
20 to 20,000 Hz
300 to 3000 Hz
Select the approximate dB intensity decrease as the distance from a sound source is doubled:
3 dB
2 dB
12 dB
6 dB
4 dB
If the 4th harmonic in an auditory stimulus is 1600 Hz, the fundamental frequency of that stimulus is?
800 Hz
400 Hz
200 Hz
6400 Hz
3200 Hz
The fundamental frequency is the:
Psychological response to a pure tone
Lowest frequency component of a complex tone
Most commonly occurring frequency in a noise stimulus
Frequency that is basic to all tones
Most speech intelligibility is contained in which of the following frequency regions?
62 – 500 Hz
500 – 1000 Hz
1000 – 2000 Hz
1000 – 8000 Hz
It is equal in each of the examples
