This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nervous system, Subject name: Physiology
Ohodromic 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 print at which a runaway spike potential
A: An axon can conduct impulse in one direction only
Answer: A: An axon can conduct impulse in one direction only 
Explanation: In the natural situation, impulses pass in one direction only, ie from synaptic junctions or receptors along axons to their termination. Such conduction is called ohodromic conduction. Ref: Ganong&;s review of medical physiology; 23rd edition; pg:88