Inner Ear: Cochlea
Cochlea = “snail”
•2 ½ coils
•Length (extended): 34 mm,
Ø <9 mm
•3 channels (scala vestibuli scala media/ scala tympani)
•Filled with liquid (perilymph, endolymph) ® no vessels !
•Basilar membrane contains receptors (hair cells)
•Oval and round window
(Scala media)
(From Sekuler & Blake, 1994)
Scala media: endolymph
Scala vestibula and scala tympani: perilymph ~liquor