In a situation that requires the most rapid possible response as an action potential crosses the synaptic cleft,_______ provide fast,invariant signal transmission.
A) motor end-plates
B) nodes of Ranvier
C) chemical synapses
D) electrical synapses
E) neuromuscular junctions

Question

Quizplus · Accepted Answer

Electrical synapses provide fast and efficient signal transmission since they allow direct transfer of ions between neurons, without the need for chemical messengers. This is particularly important in situations where a rapid response is required, such as in reflexes or muscle contractions. The other options listed (motor end-plates, nodes of Ranvier, chemical synapses, and neuromuscular junctions) all involve some form of chemical communication and are not as fast or direct as electrical synapses.

In a Situation That Requires the Most Rapid Possible Response