2. Clinical Aspects of Inner Ear Flashcards
(10 cards)
1
Q
From which embryological structure does the inner ear develop?
A
Otic placode
2
Q
What are the two main components of the labyrinth?
A
Bony labyrinth and membranous labyrinth
3
Q
What is the function of the endolymphatic sac?
A
Absorbs excess endolymph
4
Q
Which part of the cochlea detects high-frequency sounds?
A
Basal turn
5
Q
What connects the cochlear duct to the saccule?
A
Ductus reuniens
6
Q
What is Michel aplasia?
A
Complete absence of the inner ear structures
7
Q
How many turns does the cochlea have?
A
Approximately 2.75 turns
8
Q
What is the function of the cochlear aqueduct?
A
Connects the perilymphatic space to the subarachnoid space
9
Q
What is the role of the vestibular system?
A
Maintains balance and spatial orientation
10
Q
Which nerve innervates the inner ear?
A
Vestibulocochlear nerve (CN VIII)
