Ear anatomy Flashcards
1
Q
Three sections of the ear
A
Outer ear
Middle ear
Inner ear
2
Q
Outer ear
A
Pinna
External auditory meatus
Lateral surface of the tympanic membrane
3
Q
Middle ear
A
Medial surface of the tympanic membrane
Ossicles
4
Q
Inner ear
A
Cochlea
Semi-circular canals
5
Q
What lines the inner ear
A
Stratified squamous epithelium - keratinised
6
Q
What lines the middle ear
A
Respiratory epithelium - pseudostratified columnar
7
Q
What is the external acoustic meatus made of
A
Outer 1/3rd cartilaginous
Inner 2/3rd - bony
8
Q
Pinna
A
external portion of the ear
9
Q
Eustachian tube
A
Connects the middle ear with the throat to equalise pressure
10
Q
Semicircular canals
A
Responsible for sensing head movement
11
Q
Cochlea
A
Covert vibrations into action potentials
