The Ear (unit 3)

Question 1

Frequency

Answer 1

The number of complete wavelengths that pass a point in a given second

Question 2

Pitch

Answer 2

A tone’s experienced highness or lowness; depends on frequency

Question 3

Audition

Answer 3

The sense or act of hearing

Question 4

Middle ear

Answer 4

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

Question 5

Organ of corti

Answer 5

Involved in transduction

Question 6

Touch

Answer 6

Pressure, warmth, cold, and pain

Question 7

Cochlea

Answer 7

A coiled, bony, fluid filled tube on the in er ear;sound waves traveling through the cochlear fluid trigger nerve impulses

Question 8

Inner ear

Answer 8

The innermost part of the ear, containing semicircular canal, cochlea, and vestibular sacks

Question 9

Sensorineural hearing loss

Answer 9

Hearing loss caused by damage to the cochlea’s receptor cells or to the auditory nerves. (Common)

Question 10

Conduction hearing loss

Answer 10

Hearing loss cause by damage to the mechanical system the conducts sound waves to the cochlea (less common)

Question 11

Cochlear implant

Answer 11

A device for converting sounds to electrical signals and stimulating the auditory nerve

Question 12

Place theory

Answer 12

In hearing, the theory that links that pitch we here with the place where the cochlea’s membrane is stimulated

Question 13

Frequency theory

Answer 13

In hearing, the theory that the rate of nerve impulses traveling up the auditory nerve matches the frequency of a tone, therefore enabling us to sense its pitch (AKA temporal theory)

Question 14

Hearing step by step

Answer 14

Sound waves strike the eardrum>transmit to cochlea>bend the hairs that trigger nerve impulses> axons transmit to auditory cortex