There is a brief interval of time between the arrival of an action potential at a knob and the response. What causes this delay?
Q1. There is a brief interval of time between the arrival of an action potential at a knob and the response. What causes this delay?
Answer: Neurotransmitter diffusion
Explanation: Synaptic delay occurs because chemical neurotransmitters must diffuse across the cleft; electrical synapses are tempting because they lack this significant time delay.