Colorado Esthetician Written Practice Exam

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What is the outermost layer of the epidermis called?

Dermis
Stratum Basale
Stratum Corneum
Stratum Spinosum

The correct answer is: Dermis

The correct answer is C. Stratum Corneum. The outermost layer of the epidermis is called the stratum corneum. It is composed of dead skin cells (corneocytes) that provide a protective barrier for the skin. The other options are incorrect: A. Dermis is the layer of skin below the epidermis. B. Stratum Basale is the deepest layer of the epidermis where new skin cells are produced. D. Stratum Spinosum is the layer of skin between the stratum granulosum and stratum basale.