The Ear Flashcards
0
Q
What are the symptoms of a blocked eustachian tube? Why?
A
Pain
Dizziness (pressure vertigo)
Air can exit but not enter the middle ear
1
Q
What is the name of the tube to the middle ear?
A
Eustachian
2
Q
What part of the eustachian tube is most often blocked by a cold?
A
Lower end
3
Q
Other than conducting sound, what is the role of the outer ear?
A
Removing dust with hairs and wax
4
Q
How and where does the ear amplify sound?
A
Hammer, drum, anvil and stirrup in middle ear
5
Q
The stirrup conveys sound to what?
A
Cochlear
6
Q
What are the main parts of the inner ear?
A
Cochlear (hairs detect sound)
Otolith (utricle and saccule) - linear acceleration
Semicircular canals - angular acceleration
7
Q
What level of regular sound exposure will cause permanent hearing loss?
A
85dB
