Table 1.

Quantal contents and estimated released fractions of the RRP per action potential for phasic and tonic terminals bathed in Cs+-containing physiological solution

ExperimentUnitary quantal contentRRP sizeReleased fraction (%)
Phasic 115.67421
Phasic 214.35825
Phasic 317.84242
Phasic 416.55033
Phasic 517.16626
Mean ± SEM16.26 ± 0.6158 ± 5.629 ± 3.9
Tonic 10.052100.024
Tonic 20.015800.019
Tonic 30.041450.028
Tonic 40.0251220.020
Tonic 50.05950.053
Mean ± SEM0.036 ± 0.007130.4 ± 230.02 ± 0.006
Phasic/tonic ratio451.670.441450.00