In the episode of Marvel's Luke Cage the process of him getting his extraordinary strength and powers isn't really explained well. He is immersed in an electrical setup involving a certain mixture of chemical solutions. The experiment's levels go beyond the permissible/expected ones and he gets the extraordinary strength through the chemical reaction his body goes through. Wikipedia also explains this in brief:
Burstein immerses Lucas in an electrical field conducted by an organic chemical compound; when he leaves Lucas unattended, Rackham alters the experiment's controls, hoping to maim or kill Lucas. Lucas' treatment is accelerated past its intended limits, inducing body-wide enhancements that give him superhuman strength and durability.
But what exactly happened to Luke's body? What alterations took place in his body externally and internally? (Organs, cells, skin etc.) I am looking for a detailed answer.