Epidermal

Epidermal refers to the outermost layer of the skin, also known as the epidermis. The epidermis serves as the body's primary barrier against environmental damage, and plays a crucial role in the body's immune response.

Structure

The epidermis is composed of multiple layers of flattened cells that overlie a base layer (stratum basale) of columnar cells. The topmost layer of the epidermis, the stratum corneum, consists of dead cells that are continuously shed and replaced by cells from the lower layers.

Function

The primary function of the epidermis is to protect the body from environmental damage. It does this by providing a physical barrier that prevents the entry of pathogens, and by producing pigments that absorb ultraviolet radiation. The epidermis also plays a crucial role in the body's immune response, as it contains cells that can recognize and destroy pathogens.

Diseases and Disorders

There are many diseases and disorders that can affect the epidermis, including psoriasis, eczema, and skin cancer. These conditions can cause symptoms such as redness, itching, and scaling, and can sometimes be serious or life-threatening.

Treatment

Treatment for epidermal diseases and disorders depends on the specific condition and its severity. Options may include topical medications, systemic medications, light therapy, and in some cases, surgery.

See Also

• Dermatology
• Skin Anatomy
• Skin Diseases

Epidermal Resources
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