Suppose you take a drug that indirectly causes potassium (K+) to leave your postsynaptic neurons. What effect would the drug have?
A) Excitatory
B) Inhibitory
C) Hallucinogenic
D) Sedative

Question

Quizplus · Accepted Answer

Potassium leaving the postsynaptic neurons would result in a more negative resting membrane potential, making it harder for the neuron to reach its threshold and fire an action potential. This would lead to inhibition of synaptic activity, making option B the best choice.

Suppose You Take a Drug That Indirectly Causes Potassium (K+)