"That's What She Said" - Michael Scott What a way to start a science article, with dick jokes... Am I right? What the hell are we talking about? The Henneman Size Principle "The Size Principle of motoneuron recruitment stated that for any net excitatory input to the motoneuron pool, motoneurons were recruited in an orderly fashion, always from small to large." - Assessment of Size Ordered Recruitment Say Whaaaa? A quad isn't just a muscle. Well it is. But really a quad is a collection of motor units. Motor Unit:  "A motor unit is a motor neuron and the muscle fibers it innervates. It consists of both a neuron (nerve cell responsible for … [Read more...]