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Question

The outer layer of the skin consisting of dead cells is

A
Stratum malpighii
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B
Stratum lucidum
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C
Stratum granulosum
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D
Stratum corneum
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Solution

The correct option is D Stratum corneum
The outermost layer of the skin, the stratum corneum consist 15-20 layers of corneocytes, functions as the primary barrier to the external environment, preventing water loss and the invasion of microorganisms. Sebum is secreted to the stratum corneum from the sebaceous glands and helps maintain an effective, hydrophobic barrier.

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