An Electromyogram Recorded Using Two 10 Mm X 1 Mm

Multiple Choice

An electromyogram recorded using two 10 mm x 1 mm bar electrodes may contain signals from approximately how many motor units (MUs) ?

A) Between 5 and 10 MUs
B) Between 20 and 50 MUs
C) Between 1000 and 2000 MUs
D) All of the MUs contained within the muscle of interest
E) Just the single MU directly beneath the electrodes