Which of the following is False or incorrect?
A) An excitatory postsynaptic potential occurs if the excitatory effect is greater than the inhibitory effect but less than threshold.
B) A nerve impulse occurs if the excitatory and inhibitory effects are equal.
C) An inhibitory postsynaptic potential occurs if the inhibitory effect is greater than the excitatory, causing hyperpolarization of the membrane.

Question

Quizplus · Accepted Answer

A nerve impulse or action potential occurs only if the excitatory effect is greater than the inhibitory effect and reaches the threshold level of depolarization, which triggers the opening of voltage-gated ion channels and the influx of positive ions to generate an action potential. If the excitatory and inhibitory effects are equal or inhibitory effect is greater, no action potential will be generated.

Which of the Following Is False or Incorrect