Long infrared radiation is primarily absorbed in which skin layer?

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Prepare for the REMBE Electrotherapy Test. Study with flashcards and multiple choice questions. Each question comes with hints and explanations. Master electrotherapy concepts and get ready for your exam!

Multiple Choice

Long infrared radiation is primarily absorbed in which skin layer?

Explanation:
Long infrared radiation, with its lower energy, tends to penetrate past the outer skin layers and is mainly absorbed by tissues in the dermis, where water and collagen are abundant. This deeper absorption heats the corium and the surrounding microvasculature, which is the therapeutic target of IR heating. The outermost layer, the stratum corneum, is a dry, keratinized barrier that reflects or transmits IR energy less readily, so it doesn’t absorb as much. The subcutaneous tissue lies beneath the dermis and can be reached, but the primary, most significant absorption occurs in the dermis (corium).

Long infrared radiation, with its lower energy, tends to penetrate past the outer skin layers and is mainly absorbed by tissues in the dermis, where water and collagen are abundant. This deeper absorption heats the corium and the surrounding microvasculature, which is the therapeutic target of IR heating. The outermost layer, the stratum corneum, is a dry, keratinized barrier that reflects or transmits IR energy less readily, so it doesn’t absorb as much. The subcutaneous tissue lies beneath the dermis and can be reached, but the primary, most significant absorption occurs in the dermis (corium).

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