Skin’s layers



Subcutaneous tissue


Superficial part of the skin; stratified spamous epithelium; composed of four of five strata.

Deep part of skin; connective tissue composed of two layers.

NOT PART OF THE SKIN; loose connective tissue with abundant deposits of adipose tissue.


Prevents water loss and the entry of chemicals and microorganisms; protects against abrasion and ultraviolet light produces vitamin D; gives rise to hair, nails, and glands

Is responsible for the structural strength and flexibility of the skin; the epidermis exchanges gases, nutrients, and waste products with blood vessels in the dermis.

Attaches the dermis to underlying structures; adipose tissue provides energy storage, insulation, and padding; blood vessels and nerves from the subcutaneous tissue supply the dermis.