Why is the flow of signals in synapse from axonal end of neuron to dendrite end but not in reverse order.

Why is the flow of signals in synapse from axonal end of neuron to den

1.	Why is the flow of signals in synapse from axonal end of neuron to dendrite end but not in reverse order.
Answer» Why is the flow of signals in synapse from axonal end of neuron to dendrite end but not in reverse order.