epidermis and - SPORTS
Medically reviewed by Josephine Hessert, DO Key Takeaways The epidermis protects the body from ultraviolet radiation and prevents water loss.The dermis contains glands that produce oil and sweat, ... The epidermis is the top layer of skin in your body. It has many important functions, including protecting your body from the outside world, keeping your skin hydrated, producing new skin cells and determining your skin color.
Context Explanation
The epidermis serves as a barrier to protect the body against microbial pathogens, oxidative stress (UV light), and chemical compounds, and provides mechanical resistance to minor injury. The epidermis is the thin, outermost layer of the skin, providing a protective barrier against environmental hazards. Composed primarily of keratinized stratified squamous epithelium. Contains no blood vessels; nutrients diffuse from the underlying dermis.
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Insight Material
Epidermis, in zoology, protective outermost portion of the skin. There are two layers of epidermis, the living basal layer, which is next to the dermis, and the external stratum corneum, or horny layer, which is composed of dead, keratin-filled cells that have migrated outward from the basal layer. The epidermis is the outermost layer of the skin, serving as a protective barrier against environmental threats. The skin is comprised of three main layers; epidermis, dermis and hypodermis. The epidermis is the most superficial layer of the skin, and is largely formed by layers of keratinocytes undergoing terminal maturation.
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This involves increased keratin production and migration toward the external surface, a process termed cornification. The epidermis is the top layer of skin that protects against toxins and infection. There are four main layers in the epidermis, and a fifth layer is found in thick skin on palms and soles. In the bottom layer of the epidermis, skin cells divide and push older cells up to the surface where they die.