Final answer:
Second-degree burns involve the epidermis and dermis, while third-degree burns impact deeper tissue layers.
Explanation:
Second-degree burns extend into both the epidermis and a portion of the dermis, causing swelling and blistering.
Third-degree burns fully extend into the epidermis and dermis, destroying tissue and affecting nerve endings.
Severity of burns is classified by degrees ranging from first-degree (superficial) to fourth-degree burns involving muscles and bones.
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