The main cells of the human epidermis are A: Melanocytes B: Keratinocytes C: Langerhans cells D: Merkel cell E: Fibroblasts

Which of the following structures can not be found in the epidermis？ A: Duct of sweat glands B: Capillaries C: Nerve endings D: Melanocytes

The basal layer also contains special cells called_______, which produce black pigment that gives color to the skin. A: adipocyte B: epithelium C: keratin D: melanocytes