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Vulcan spines bit is incorrect Edit
This episode establishes that Vulcans' spinal columns are visually prominent. The ridges we see on T'Pol's back are not present on Spock's back (as seen in "Patterns of Force"), but that could be explained by the fact that Spock is half-Human. The ridges are not on T'Pol's back in the later third season episode "Harbinger".
This is incorrect - the spine is only visible when Rajiin is scanning internally using whatever gizmo she has in her hands, same as when the muscles and tissue in T'Pol's face are visible earlier in the shot. 22.214.171.124 21:38, July 22, 2016 (UTC)