Red Seal Cosmetology Practice Exam

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What is the clear, transparent layer of the epidermis located under the stratum corneum?

  1. Stratum lucidum

  2. Stratum granulosum

  3. Stratum spinosum

  4. Stratum germinativum

The correct answer is: Stratum lucidum

The correct answer is A Stratum lucidum. The clear, transparent layer under the stratum corneum is not found in option B, Stratum granulosum, as this layer is responsible for producing keratin, a protein that helps in the formation of hair and nails. Option C, Stratum spinosum, is made up of several layers of cells that contain spiny projections, which do not fit the description of a clear, transparent layer. Option D, Stratum germinativum, is another name for the stratum basale layer, which is the innermost layer of the epidermis and is responsible for producing new skin cells. This layer is not clear or transparent like the stratum lucidum layer.

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