Skin

The skin is the largest organ of the human body and consists of three main layers:

• Epidermis:

The outermost layer of the skin, primarily composed of epithelial cells. It serves as a protective barrier against pathogens, UV radiation, and chemical damage.

• Dermis: 

The middle layer of the skin, composed of connective tissue containing blood vessels, nerve endings, sweat glands, and hair follicles. The dermis provides structural support, blood supply, and sensory perception.

• Subcutaneous tissue (Hypodermis): 

The innermost layer of the skin, consisting of adipose tissue (fat) and connective tissue. It acts as insulation, energy storage, and cushioning for underlying structures.