Exam 2: Ear Flashcards
1
Q
what are the 3 parts of the external ear?
P, EAM, TM
A
- Pinna; gathers sound waves
-External auditory meatus ( ear canal); conducts sound waves
-Tympanic membrane (ear drum); vibrates
2
Q
What are the 2 parts of the middle ear?
O, ET
A
- ossicles
- eustachiantube
3
Q
What are ossicles?
M S I
A
tiny bones in the ear that Vibrate
- malleus
- incus
- Stapes
4
Q
What is the function of the eustachian tube?
A
connects the middle ear to the throat
5
Q
What 3 parts make up the inner ear?
v, sc, c
A
- vestibule
- 3 semicircular canals
- cochlea
6
Q
What is the vestibule?
A
central area; a bony labyrinth contains
- 2 membranous labyrinth
- 2 membranous “windows’’
7
Q
What are the two membranous labyrinths located in the vestibule?
A
utricle and Saccule
8
Q
What are the two membranous covered Windows located in the vestibule?
A
- oval
- round
