Originally Posted by MMA-Sportsman
Ok, not sure you were joking here, but the chin has only one role in a KO: It's the place where the punch lands to violently shake someones brains to unconciousness. If an electric signal was to be envolved, guys woudn't be knocked out using helmets in football and that happens a lot.
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Iv never looked it up but im pretty sure there is a nerve behind the jaw that when the jaw slams in to it is causes a person to go out cold.