[Measurement of endolymphatic potential].
The EP was elicited in the basal and second cochlear turns and the round window membrane. The EP values were 76.64 +/- 4.73 mV (N = 53) in the basal turn, 77.15 +/- 5.56 mV (N = 201) in the second turn and 80.14 +/- 5.96 mV (N = 21) in the round window membrane. The EP in the basal and second cochlear turns was stable and constant. The measurement of the round window membrane EP was simple. The basal turn EP was generally used during experiments with intravenous drug administration and the second turn EP was used during perilymph perfusion. The authors had introduced adequate equipment for EP measurement. The source of EP and the influencing factors of EP measurement were discussed.
Liu
J
J
Sixth People's Hospital, Shanghai.
D000200:Action Potentials; D000328:Adult; D003051:Cochlea / Q000502:physiology*; D004710:Endolymph / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male