Why Are CMAPs Significantly Greater Than Sensory Nerve Action Potentials

question 2

Multiple Choice

Why are CMAPs significantly greater than sensory nerve action potentials (SNAPs) ?

• A) CMAPs are determined by antidromic rather than orthodromic stimulation.
• B) SNAPs have fewer nerve fibers to activate compared with CMAPs.
• C) Distal latencies of SNAPs are much shorter than those of CMAPs.
• D) CMAPs are the summation of numerous muscle fiber action potentials.

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