Reaction at CATHODE: 1  H+H+ and Cu2+Cu2+ ions are attracted to the cathode. 2  Cu2+Cu2+ ions are preferentially discharged as Cu2+Cu2+ is lower in the electrochemical series than H+H+. 3  Each Cu2+Cu2+ ion gains two electrons from the cathode to form one copper atom.
One of the most well known spine cranks is the boston crab, which is usually depicted in pro-wrestling context. Similarly to neck cranks, spine cranks are illegal techniques in most combat sports, excluding some submission wrestling and mixed martial arts competitions, where they are used as submission holds.
As an example, a bilateral spinal cord lesion at the C5 level would injure the anterior horn cells or ventral motor roots there, producing LMN signs in the biceps brachii and deltoid muscles, but not in muscles innervated by other anterior horn cells at other levels.