At the Frog NMJ, After Lowering the Extracellular Calcium and Adding

Multiple Choice

At the frog NMJ, after lowering the extracellular calcium and adding extracellular magnesium, how are mEPPs affects?

A) There is no change in mEPPs.
B) mEPP amplitude is reduced.
C) mEPP amplitude is increased.
D) mEPP frequency is reduced.
E) mEPP frequency is increased.