Hearing

Question 1

What are sound waves?

Answer 1

Changes in air pressure. The physical stimulus for audition.

Question 2

What are sound waves funneled by?

Answer 2

pinna (outermost portion of the ear), into the auditory canal (part you stick a q card in)

Question 3

What does the tympanic membrane vibrate against ?

Answer 3

the ossicles

Question 4

what amplifies the sound waves before they enter the cochlea?

Answer 4

the eardrum and the ossicles

Question 5

What is audition?

Answer 5

Ability to process auditory stimuli. Also called hearing.

Question 6

What is Interaural time differences (ITD)

Answer 6

Differences (in time) between the two ears.

Question 7

What are interaural level differences (ILD)

Answer 7

Differences (usually in time or intensity) between the two ears.

Question 8

What sound pressure level is dangerously loud?

Answer 8

120 decibels (db)