Physiology Not true about action potential recording: A Compound action potential of a mixed nerve is recorded by cathode ray oscilloscope B Biphasic action potential is recorded by surface electrode C Compound AP is an algebraic summation of the all the monophasic recording from a mixed nerve D Typical action potential is recorded by microelectrode placed inside the nerve fibre 💡 Explanation Not true about action potential recording: ✓ Correct Answer: A. Compound action potential of a mixed nerve is recorded by cathode ray oscilloscope