Can you specify what you mean by "purely on the anatomy side" and "what Nyn has done"?

Damer is also an accomplished Healer, and he's healed Irgains', Ronailles' and Sashalles' connections to the Source as well as physical injuries, such as the one suffered by Alivia. I would think this implies that if you have the Talent to Restore on a great level, you can help victims recover from metaphysical and physical injuries. Another indication that this is the case is that Nynaeve could detect and undo Graendal's Compulsion using her Talent, even though she had never dealt with mental damage before.