This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Physiology
Orthodromic conduction is 
Select and explain. 
A. An axon can conduct impulse in one direction only, B. An axon can conduct impulse in both direction, C. The jumping of depolarization from node to node, D. The point at which a runaway spike potential occurs
A: An axon can conduct impulse in one direction only
Answer: A: An axon can conduct impulse in one direction only 
Explanation: The conduction of impulses in a single direction, that is from receptor or synapse to the axons and further to the termination, is known as Orthodromic conduction.