4:20 - hearing

Question 1

audition

Answer 1

sense of hearing

Question 2

frequency

Answer 2

number of wavelengths that pass a point in a given time

Question 3

pitch

Answer 3

highness or lowness of a tone. depends on frequency

Question 4

middle ear

Answer 4

chamber between the eardrum and cochlea that has three tiny bones (hammer, anvil, and stirrup) that concentrate vibrations of the eardrum on the cochlea’s window.

Question 5

cochlea

Answer 5

converts the mechanical vibrations of sound waves into electrical signals that can be interpreted by the brain.

Question 6

inner ear

Answer 6

innermost part of the ear. where the cochlea, semicircular canals, and vestibular sacs are.

Question 7

sensorineural hearing loss

Answer 7

caused by damage to the cochlea’s receptor cells or auditory nerves. aka nerve deafness.

Question 8

conduction hearing loss

Answer 8

caused by damage to the mechanical system

Question 9

cochlear implant

Answer 9

converts sounds to electrical signals & stimulates the auditory nerve through electrodes in the cochlea

Question 10

place theory

Answer 10

links the pitch we hear with the place where the cochlea’s membrane is stimulated.

Question 11

frequency theory

Answer 11

the rate of nerve impulses traveling up the auditory nerve matches the frequency of a tone, thus enabling us to sense its pitch.