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.
Injuries may affect the spinal cord or the roots of the spinal nerves, which pass through the spaces between the back bones (vertebrae) of the spine. 1  The bundle of nerves that extend downward from the spinal cord (cauda equina) may also be injured. Injuries of the spinal cord cause nerve damage or dysfunction in one the following ways: 1  Jarring by a blunt injury (such as a fall or a collision) 2  Pressure (compression) by broken bones, swelling, or an accumulation of blood (hematoma) 3  Partial or complete tears (severing)