I would like to correspond thermal conductivity of different human tissues to their location from the skin surface. I need help on articles or textbooks where where I can find the distances of tissues (like lungs, spleen, muscle, liver, heart, etc) from any specific point on the surface of the skin. For example, if muscle is 2.5mm (the information I seek) from the skin surface, k(x = 2.5) = 0.5; then it could be said that the thermal conductivity of the tissue (muscle) which is 2.5mm from a reference point on the skin surface is 2.5W/m/K.