Which term is the outer layer of skin composed of corneocytes?

Prepare for the VTCT Level 2 Facial and Skincare Test. Revise with flashcards and multiple choice questions, accompanied by insightful explanations. Ace your assessment with confidence!

Multiple Choice

Which term is the outer layer of skin composed of corneocytes?

The outermost skin layer that contains corneocytes is the stratum corneum. This layer is made up of corneocytes, which are flattened, dead keratinocytes filled with keratin and held together by lipids to form a tight, protective barrier. It acts as the main shield against environmental damage and helps regulate water loss from the body. The other options don’t describe a specific outer layer composed of corneocytes: one refers to epidermal cell types in general, another describes a function (water passage control) rather than a layer, and the last points to cells in the deeper granular layer (stratum granulosum), not the outermost surface.

The outermost skin layer that contains corneocytes is the stratum corneum. This layer is made up of corneocytes, which are flattened, dead keratinocytes filled with keratin and held together by lipids to form a tight, protective barrier. It acts as the main shield against environmental damage and helps regulate water loss from the body. The other options don’t describe a specific outer layer composed of corneocytes: one refers to epidermal cell types in general, another describes a function (water passage control) rather than a layer, and the last points to cells in the deeper granular layer (stratum granulosum), not the outermost surface.

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