Chapter 17 - Eye and Ear - Middle ear Flashcards
1
Q
Tympanic membrane (eardrum)
A
– is the membrane between the outer and the middle ear.
2
Q
What are the 3 small bones (ossicles) of the middle ear?
A
The malleus, incus, and stapes
3
Q
Malleus
A
– first bone in the middle ear – malleus means hammer
4
Q
Incus
A
– second small bone in the middle ear – incus means anvil
5
Q
Stapes
A
– the third small bone in the middle ear – stapes mean stirrup
6
Q
Oval window
A
– as the stapes moves, it touches a membrane called the oval window, which separates the middle ear from the inner ear.
7
Q
Eustachian tube
A
– canal leading from the middle ear to the pharynx
8
Q
The eustachian is usually closed but opens when…
A
you swallow.
