The Number of Cells Per Motor Unit in the Leg

Question

The number of cells per motor unit in the leg muscles can reach up to ________.
A) one hundred
B) less than a dozen
C) millions
D) hundreds
E) many thousands

Accepted Answer

The leg muscles, being large and powerful, require many muscle fibers to work together to generate forceful contractions. Therefore, the number of cells per motor unit can reach up to many thousands.