Which of the following is a normal characteristic of a motor unit potential?
A) Amplitude of 10 to 50 mV
B) Duration of 5 to 15 msec
C) Usually has multiple phases (polyphasic)
D) Low frequency (usually 1 to 5 per second)

Question

Quizplus · Accepted Answer

Motor unit potentials typically have a duration of 5 to 15 milliseconds, which falls within the normal range for the duration of a motor unit action potential as recorded during electromyography (EMG).

Which of the Following Is a Normal Characteristic of a Motor