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.
Introduction. 1  Caused by muscles imbalance between spastic intrinsics (interosseoi and lumbricals) weak extrinsics (FDS, FDP, EDC) 2  Characterized by MCP flexion. PIP & DIP extension. 3  Etiology. trauma direct trauma.  Pathoanatomy spastic intrinsics leads to flexion of the MCP and extension of the IP joints.