On the concept of the motor subunit.
D000200:Action Potentials; D000818:Animals; D002415:Cats; D006801:Humans; D009046:Motor Neurons / Q000502:physiology*; D009132:Muscles / Q000033:anatomy & histology / Q000294:innervation; D009431:Neural Conduction; D009469:Neuromuscular Junction / Q000502:physiology*