Physiology True regarding autonomic system is A High centre of integration is medulla oblongata B Conduction autonomic fibres is same as in somatic motor fibres C Preganglionic parasympathetic fibres are more lengthy D Ratio of preganglionic and post ganglionic fibres is 20:1 💡 Explanation True regarding autonomic system is ✓ Correct Answer: C. Preganglionic parasympathetic fibres are more lengthy