Colorado Esthetician Written Practice Exam

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Study for the Colorado Esthetician Written Exam. Prepare with flashcards and multiple-choice questions, each with hints and explanations. Get ready for your esthetician license!

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Which layer is above the dermis and has a single layer of basal cells?

  1. Stratum Basal

  2. Stratum Spinosum

  3. Reticular layer

  4. Subcutaneous layer

The correct answer is: Stratum Basal

The correct answer is "A. Stratum Basal." The stratum basale, also known as the basal layer or stratum germinativum, is the bottom layer of the epidermis. It is located above the dermis and consists of a single layer of basal cells. These basal cells are constantly dividing and pushing new cells towards the surface of the skin, helping to regenerate the epidermis. Option B, Stratum Spinosum, is a layer above the stratum basale and is composed of several layers of cells. Option C, Reticular layer, is a layer within the dermis, below the epidermis. Option D, Subcutaneous layer, is located below the dermis and is primarily composed of adipose (fat) tissue.

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