Layers Of the Skin
Three Layers of Skin
Epidermis: Keratinocytes, melanocytes, Langerhans cells, Merkel cells
Dermis: Collagen (types I & III), elastin, proteoglycans, hair follicles, glands (apocrine, eccrine, sebaceous), blood vessels, lymphatics, nerves
Subcutis (subcutaneous fat): Adipose tissue, large blood vessels, nerves
Epidermis: 4 Layers
Basal cell layer (stratum basalis)Spiny cell layer (stratum spinosum)Granular cell layer (stratum granulosum)Cornified layer (stratum corneum)
Dermis: 2 LayersPapillary dermis (thin zone beneath epidermis)Reticular dermis (bulk of dermis)
Reference : Barankin B, Freiman A. Derm Notes: Dermatology guide