Where can the stratum lucidum be found?

The stratum lucidum is a specific layer of the epidermis that is typically found only in particular areas of the body, namely the thick skin of the palms of the hands and the soles of the feet. This layer is composed of several layers of dead keratinocytes and provides an additional barrier for these areas that experience more friction and abrasion compared to other parts of the body.

The presence of the stratum lucidum in these regions contributes to the overall thickness and protective function of the skin. It is adapted for areas where the skin is subject to more wear and tear, which is why you won't find this layer in thinner skin regions, such as the face, scalp, or the majority of the body. The other options do not accurately represent the distribution of the stratum lucidum, as it is not present on the face or scalp, and it does not cover the entire body.