Hearing Quiz

Please wait while the activity loads.
If this activity does not load, try refreshing your browser. Also, this page requires javascript. Please visit using a browser with javascript enabled.

If loading fails, click here to try again

This quiz will cover topics on the videos about the sense of hearing. Have fun and enjoy!

Start

Congratulations - you have completed Hearing Quiz. You scored %%SCORE%% out of %%TOTAL%%. Your performance has been rated as %%RATING%%

Your answers are highlighted below.

Question 1

What part of the ear is also called the pinna?

	external ear
	eardrum Hint: No. This one is otherwise called the tympanic membrane. Try another one. I’m pretty sure you’ll get it this time.
	stirrup Hint: This one is also called stapes but, not pinna. Pinna is located in the outer part of the ear.
	cochlea Hint: In Latin, this means “snail shell.” This does not refer to nor is related to pinna. Try something that’s located in the outer part of the ear. That should be easy :)

Question 1 Explanation:

Right! You can view and learn more about the parts of the ear in this video.

Question 2

How many small bones are connected to the eardrum inside the ears?

	three
	one Hint: One isn’t enough. Try a bit higher :)
	five Hint: Five is a lot. Try a bit lower.
	two Hint: Your missing some thing. I know you’ll get this right.

Question 2 Explanation:

The three bony ossicles of the ear are the malleus, the incus, and the stapes or the hammer, anvil, and stirrup, respectively. For a better preview of the parts of the ear, you can refer to this video.

Question 3

How much should the stapes move more than the malleus to ensure that the fluid inside the cochlea moves the same amount as that of the vibration that is made in the tympanic membrane?

	1.3 times
	They should move at the same rate. Hint: Try again. One of them has to move more than the other but, by how much?
	3 times more. Hint: Oh, that’s too much. Try, more or less half of this. I think you’ll get it right this time.
	5 times more. Hint: That’s too much. Try a slower one. I know you’ll get it.

Question 3 Explanation:

This is specially achieved since we want to move the fluid inside the cochlea the same amount, we want the same amount of vibration that we have inside the tympanic membrane so that accurate signals can be sent to the brain via the cochlear nerve. For a clearer and detailed explanation, you can refer to this video.

Question 4

What is the optimum size of the tympanic membrane as compared to the oval window to match the vibration in the Eustachian tube (filled with air) with that inside the cochlea (filled with fluid)?

	18.6 times larger than the oval window
	3 times larger Hint: Not enough vibration will be produced. try something bigger.
	1.3 times larger Hint: This one’s going to be too weak. try again.
	12 times larger Hint: Though slightly larger, this size is still not enough. Pick your best guess :)

Question 4 Explanation:

Good thinking! There is a greater pressure needed to make in the vibrations in the fluid inside the cochlea match the vibration of the Tympanic Membrane. This is clearly explained in this video.

Question 5

Vibration from the bony ossicles to this part of the ear in turn causes vibration in the cochlea. What part are we referring to?

	oval window
	stirrup Hint: No. We’re looking for something that comes before this starting from the outer ear.
	basilar membrane Hint: This isn’t what we’re looking for. Come on, try another one. I know you can do it.
	Eustachian tube Hint: No, unfortunately not this one, please try again.

Question 5 Explanation:

Exactly! When the oval window vibrates, the fluid inside the cochlea is going to vibrate causing a series of vibrations. This is going to cause a signal in the auditory nerve, and that signal then travels to the brain. You can read about this transfer of vibration in this video.

Question 6

The bony ossicles and the Eustachian tube are parts of the ______________.

	middle ear
	outer ear Hint: Parts of the outer ear are the pinna, eardrum, and the tympanic membrane. Pick another one. You’ll probably get it this time.
	inner ear Hint: Parts of the inner ear are the cochlea, the semicircular canals, and the nerves and so on. Choose another one. I know you’ll do better than this.
	terminal ear Hint: I don’t think we have this part of the ear. Think harder :)

Question 6 Explanation:

That’s right! IF you want to learn more about the parts of the ear, you can watch this video here.

Question 7

The outer ear region stretches from the pinna to the ________.

	eardrum
	bony ossicles Hint: I know you can do better than that. What is the structure just before these tiny bones?
	cochlea Hint: This is already part of the inner ear. Please try again.
	Eustachian tube Hint: This is part of the middle ear. Come on, I know you know the answer.

Question 7 Explanation:

That wasn’t so hard, was it? The structure of the ear consists of the outer, middle and inner ear. The outer ear starts from the pinna until the eardrum. From that point, starts the middle ear which ends at the Eustachian tube. The cochlea, the semicircular canals, and the nerves and so on are part of the inner ear. You can review more about the structure in this title.

Question 8

Which structure of the ear looks like a snail?

	cochlea
	semicircular canals Hint: They don’t resemble snails. We’re looking for something that actually sounds like Latin.
	Eustachian tube Hint: No, not this one. If Eustachian tube is filled with air, this other part that we’re looking for is filled with fluid. Get it?
	bony ossicles Hint: Please try another one. I know you’ll get it this time.

Question 8 Explanation:

Perfect! The term “cochlea” is actually Latin for snail shell. (Added fact!). If you want to know more about the parts of the ear, you can refer to this video.

Question 9

Which part of the ear responds to the tectorial membrane and is directly responsible for hearing?

	inner hair cells
	outer hair cell Hint: The outer hair cell is responsible for modulating the response to a sound. Please try another one. I think you’ll get it this time.
	basilar membrane Hint: It’s vibration will cause the tectorial membrane to move which in turn causes the _______________ to bend and cause a signal to be sent to the brain.
	scala tymapni Hint: This one refers to the cavity at the bottom of the cochlea, beneath the basilar membrane. Come on, try again, I know you know this.

Question 9 Explanation:

When the sound comes into the cochlea, the basilar membrane vibrates up-and-down that causes the tectorial membrane to move in a windshield-wiper-like fashion, causing the inner hair cells to bend. And when this happens, this causes a signal to be sent to the brain. You watch more of this in this fun video where you’ll also see a dancing hair cell!

Question 10

Which of the following is true about the hair cells in the ear?

	postassium channels can be found in the shorter stereocilia
	The sterocilia in the hair cells occur in three’s. Hint: They actually occur in pairs and are connected together. Pick another guess. You’ll probably get it this time.
	The longer stereocilia is chemically connected to the shorter stereocilia. Hint: No, they’re not instead they are mehcanically connected to them. Try again. I know you know this :)
	The hair cells are surrounded by a fluid called an exolymph which is rich in potassium and calcium ions. Hint: The fluid surrounding these hair cells are actually called endolymph. You can try another one.

Question 10 Explanation:

That’s right! These channels are mechanically-gated potassium channels that are not extremely selective to potassium. These channels open letting potassium in causing an increase in membrane potential and so on until neurotransmitters are released and signals are sent to the brain. You can watch more of this in detail in this video.

Once you are finished, click the button below. Any items you have not completed will be marked incorrect. Get Results

There are 10 questions to complete.

List

Return

Shaded items are complete.

1	2	3	4	5
6	7	8	9	10
End

Return

Hearing Quiz

Hearing Quiz

Image Sources

Support Interactive Biology

What People are Saying