Mods 20 & 21 Flashcards

Front

pitch

Back

a tone's experienced highness or lowness; depends on frequency

Front

Frequency

Back

the number of complete wavelengths that pass a point in a given time

Front

middle ear

Back

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

Front

inner ear

Back

the innermost part of the ear, containing the cochlea, semicircular canals, and vestibular sacs

Front

cochlea

Back

a coiled, bony, fluid-filled tube in the inner ear through which sound waves trigger nerve impulses

Front

conduction hearing loss

Back

hearing loss caused by damage to the mechanical system that conducts sound waves to the cochlea

Front

sensorineural hearing loss

Back

hearing loss caused by damage to the cochlea's receptor cells or to the auditory nerves; also called nerve deafness

Front

cochlear implant

Back

a device for converting sounds into electrical signals and stimulating the auditory nerve through electrodes threaded into the cochlea

Front

place theory

Back

the theory that links the pitch we hear with the place where the cochlea's membrane is stimulated

Front

frequency theory

Back

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