Epidermis

The epidermis is the outermost layer of cells covering an organism. In animals, this layer of cells functions as a protective barrier against the external environment, defending the underlying tissues from pathogens, dehydration, and mechanical damage. In plants, the epidermis, often coated with a waxy cuticle, regulates gas exchange and water loss. The structure and thickness of the epidermis vary significantly across different species and body regions, reflecting diverse adaptations to environmental conditions.

Epidermis meaning with examples

• The dermatologist examined the rash, noting the inflammation localized within the epidermis. He explained that sun exposure caused the damage, prompting the skin to react. He advised the patient to protect the epidermis using sunscreen with a high SPF. This was to prevent further damage.
• A small abrasion on the child's knee barely broke the epidermis. The parent cleaned the area, reassuring the child. It was only a graze, but they still needed to monitor the skin to ensure that no infection set into the area. After a few days, the epidermis healed.
• The botanist studied the leaves, focusing on the epidermis to understand how plants regulate gas exchange. The epidermis' pores and stomata, along with the cuticle, affected the carbon dioxide and water balance. Different plants have epidermis designed for their specific environments.
• During a skin biopsy, a small sample of the epidermis was taken for microscopic analysis. The doctors will look for changes within the cells. The diagnosis depended on the condition of the layers below the epidermis. Further tests were necessary to confirm the specific type of skin condition.
• Severe burns can destroy multiple layers of skin, including the epidermis, which results in severe damage. This can leave individuals vulnerable to infection and fluid loss. The medical team worked hard to help grow new epidermis to try and avoid grafts.