Question

Choose the correct option from the following regarding electrical synapses

• A. Allow impulses to pass in either direction
• B. Are not as sensitive to temperature as are chemical synapses
• C. Rapidly transmit impulses
• D. All of the above

Answer 1

The correct option is D All of the above

• In many animals, electrical synapse-based systems co-exist with chemical synapses. Compared to chemical synapses, electrical synapses conduct nerve impulses faster, but, unlike chemical synapses, they lack gain—the signal in the postsynaptic neuron is the same or smaller than that of the originating neuron.
  
• These synapses are often found in neural systems that require the fastest possible response, such as defensive reflexes. An important characteristic of electrical synapses is that they are mostly bidirectional (allow impulse transmission in either direction).
  

So, the correct answer is 'all of the above'.