Linked from
The 18 pages that link to Motor unit, each with the reason it gives.
Motor neuronBroader topic: Its size determines how many fibers one motor neuron recruits together.
Muscle toneRelated: Motor-unit activity contributes active force that can affect measured tone.
Muscle weaknessBroader topic: Damage to a motor unit can reduce the force a muscle produces.
Grip strengthRelated: Recruiting motor units helps determine how much force a grip can produce.
MuscleBroader topic: Recruiting different motor units lets skeletal muscle adjust force.
MyologyRelated: Motor units show how nerves recruit fibers to regulate force.