The ear

Question 1

External ear

Answer 1

Consists of the concha and the pinna. Collects and focuses sound energy (like the lens/cornea in the eye)

Question 2

Middle ear

Answer 2

Sound energy hits the eardrum; the tympanic membrane. This is connected to three little bones; Malleus, incus and the stapes

Question 3

Oval window

Answer 3

Where the malleus - incus - stapes connects to the internal ear

Question 4

Internal ear

Answer 4

Cochlea with 3 fluid filled chambers.

Question 5

Basilar membrane

Answer 5

Inside of cochlea, filled with haircells of which the tips are called stereocilia. Movement of these cells cause depolarazation aka action potental

Question 6

Tonotopic organization

Answer 6

Low freq travels further, so hits farther in the ear. Based on the freq it hits a location. High freq is heard at the oval window, low freq is heard at the apax