epidermis structure. skin anatomy

epidermis skin cell structure anatomy layer health tissue science basal melanin dermis corneum medicine epidermal melanocyte diagram body keratinocyte epithelial vector pigment skincare stratum medical keratinocytes langerhans merkel spinosum granulosum lucidum keratinization cross microscope granular scientific layers anatomical epithelium basement membrane desmosome production basale melanocytes cells desquamation regeneration