A first-degree burn affects which skin layer?

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Study for the Galen Anatomy and Physiology (AandP) 1 Theory Exam 2. Gain confidence with flashcards, pinpoint areas needing focus, and strengthen understanding through detailed explanations. Excel in your exam with comprehensive preparation!

Multiple Choice

A first-degree burn affects which skin layer?

Explanation:
First-degree burns affect only the epidermis, the outermost skin layer. The epidermis provides the protective barrier of the skin, and when heat injures only this top layer, you get redness and pain without damage to the deeper tissues. Since the dermis remains intact, there’s typically no blister formation, and the burn heals quickly as epidermal cells at the base layer regenerate the surface over a few days. If the heat reached the dermis, you’d see deeper injury with blistering and longer healing, which would be a more serious second-degree burn.

First-degree burns affect only the epidermis, the outermost skin layer. The epidermis provides the protective barrier of the skin, and when heat injures only this top layer, you get redness and pain without damage to the deeper tissues. Since the dermis remains intact, there’s typically no blister formation, and the burn heals quickly as epidermal cells at the base layer regenerate the surface over a few days. If the heat reached the dermis, you’d see deeper injury with blistering and longer healing, which would be a more serious second-degree burn.

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