Ears and Hearing (13)

Overview

Pop Quiz: Ears and Hearing

Question 1

What type of sound has a frequency that’s too low for humans to hear?

Choices

Extrasound, infrasound, gammasound, harmonic

Conclusion

Infrasound is sound with a frequency below about 20 Hertz. That's beyond the level a human ear can detect. But many animals can hear infrasound.

Question 2

Let's try another one. True or false: Fish can't hear.

Conclusion

That's false! Although fish don't have ears that we can see, they do have ears inside their heads!

Question 3

And finally, what's the name of the membrane that separates the ear canal from the middle ear?

Choices

Tympanic membrane, pericardium, pleura, epithelial membrane

Conclusion

It's the tympanic membrane, also known as the eardrum! Did you get it?

Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.