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Description:

AP Psychology 2.1 Sensation and Perception. Another name for the eardrum is the what?

Language:
English Language

Transcript

00:03

And here's your shmoop du jour brought to you by the

00:05

eardrum which sounds like a bad idea if you ask us... alright here's today's question [People in a parade playing the drums]

00:10

another name for the eardrum is the what right here the answers...

00:15

....All right well to make things a little easier let's pull up a labelled ear

00:20

diagram right there of course we're not going to just show you the labels [Diagram of the inner ear]

00:25

because well that would be too easy sorry to get your hopes up first up is A

00:28

the cochlea..That another name for the eardrum? well no because the cochlea

00:33

is a portion deep in the inner ear that changes sound into nerve messages

00:38

that go to your brain well think of it as a translator making sense of [A fish swimming towards the brain via a signal]

00:42

everything coming into your ear from music to uh not so music and where on

00:48

our diagram is it well seeing as cochlea comes from the ancient Greek word for

00:52

spiral or snail shell it's pretty easy to locate cute-looking yes are answered [A snail on a diagram of the inner ear]

00:57

no.. On the topic of answers whose names describe their shape we can eliminate B

01:02

malleus it's definitely not the eardrum but instead of small bone connected to [A small bone hitting a drum near an ear]

01:07

the eardrum and helps transmit vibrations throughout the ear and its

01:11

shape well, looks like a hammer like a mallet, right malleus mallet they pay us

01:15

the big bucks for these comparisons people the oval window more or less describes [Man stood in sunglasses and money falls from the sky]

01:19

its appearance as well it is after all a membrane covered opening leading from

01:24

the middle of the ear to the inner ear it's necessary and allowing sound [sound travelling through the oval window]

01:27

passage through the ear and sort of a kind of looks like an oval window but

01:32

it's not our answer either. The stapes too is so named because of its appearance, though

01:38

the reference may be lost on all you city folks it's a small bone that [Dog waiting outside a window sending vibrations]

01:42

transmits vibrations to the oval window and it shaped a lot like a stirrup you

01:48

know those things that keep a horse riders feet in place, or that legging

01:51

trend from the 90's...Either way, stapes is not the right answer which [Horse wearing leggings]

01:56

means the correct answer is in fact C the tympanic

01:59

membrane another far more fancy shmancy name for the eardrum when sound waves

02:04

hit the eardrum that causes the bones in the inner ear to move which in turn

02:07

initiate the process of transduction or by both sound waves are converted into

02:11

neural signals ooh la la tympanic membrane a very important and sciencey

02:17

of you. Now if you'd excuse us we have to run away before this kid decides to pick [A kid chases a man with drum sticks]

02:22

an ear drum solo

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