This medium magnification image of the section from a thick skin shows
the epidermis andits underlying dermis. The
outer portion of the epidermis iscomposed ofnumerous very
thin layers of squamous cells, which lack
nuclei and are filled with the protein keratin. The inner (lower) portion
of the epidermis is composed of more or less cuboidal
cells with nuclei and basophilic cytoplasm. The dermis, which sends
finger-like extensions into the epidermis is composed of pink-staining collagen
fibers and numerous cells with purple-stained nuclei.
