Module 20 - Hearing Flashcards
1
Q
audition
A
the sense or act of hearing
2
Q
frequency
A
the number of
complete wavelengths that pass a
point in a given time (for example,
per second).
3
Q
pitch
A
a tone’s experienced highness
or lowness; depends on frequency.
4
Q
middle ear
A
the chamber between the eardrum and cochlea containing three tiny bones (hammer, anvil, and stirrup) that concentrate the vibrations of the eardrum on the cochlea’s oval window.
5
Q
cochlea
A
a coiled, bony, fluid-filled tube in the inner ear; sound waves traveling through the cochlear fluid trigger nerve impulses.
6
Q
inner ear
A
the innermost part of
the ear, containing the cochlea,
semicircular canals, and vestibular sacs.
7
Q
sensorineural hearing loss
A
hearing loss caused by damage to
the cochlea’s receptor cells or to the
auditory nerves; also called nerve
deafness.
8
Q
conduction hearing loss
A
hearing
loss caused by damage to the
mechanical system that conducts
sound waves to the cochlea.
9
Q
cochlear implant
A
a device for converting sounds into electrical signals and stimulating the auditory nerve through electrodes threaded into the cochlea.
10
Q
place theory
A
in hearing, the
theory that links the pitch we hear
with the place where the cochlea’s
membrane is stimulated.
11
Q
frequency theory
A
in hearing, the theory that the rate of nerve impulses traveling up the auditory nerve matches the frequency of a tone, thus enabling us to sense its pitch.
