Epidermis: Originates from the ectoderm. The layers from deep to superficial are arranged as per the mnemonic “BabeSLove Good Cops”: Stratum basale, stratum spinosum, stratum lucidum, stratum granulosum, and stratum corneum.
Langerhans’ cells: The skin’s antigen presenting cells. They are derived from the bone marrow and contain Birbeck granules.
Melanoblasts: Responsible for the skin’s pigmentation. They are derived from neural crest and they contain melanosomes (skin pigment).
Merkel cells: Serve as mechanoreceptors and are of unknown origin
Meissner corpuscles: Receptors of light touch,and are mainly concentrated in the fingertips (Fig. 4.1 )