1.Function of the Epidermis

Skin Layers and Structure

Epidermis

• The outermost layer of the skin.

• Provides a protective barrier against environmental hazards.

Rete Pegs

• Projections of the epidermis into the dermis.

• Increase surface area for exchange of nutrients and waste.

Dermal-Epidermal Junction

• The area where the epidermis and dermis meet.

• Plays a crucial role in skin integrity and stability.

Papillary Dermis

• The upper layer of the dermis.

• Features dermal papillae that enhance the connection between dermis and epidermis.

• Contains capillaries and nerve endings.

Dermis

• Located beneath the epidermis.

• Contains connective tissue, hair follicles, and sweat glands.

• Provides strength and elasticity to the skin.

Subcutaneous Tissue

• Also known as hypodermis.

• Composed of fat and connective tissue.

• Helps insulate the body and absorb shocks.