Slay the North Dakota Cosmetology Exam 2026 – Get Stylish, Get Certified!

Question: 1 / 410

What is the Stratified Layer of the skin primarily responsible for?

Regeneration of skin cells

Protection from external factors

The stratified layer of the skin, specifically the stratum corneum, plays a critical role in protection from external factors. This layer consists of multiple layers of dead skin cells that provide a robust barrier against environmental elements such as pathogens, chemicals, and physical abrasions. The thickness and density of this layer are key to its protective function, preventing the entry of harmful substances while also reducing water loss from the body.

While other layers of the skin contribute to various functions, such as cell regeneration in deeper layers or melanin production in the melanocytes found in the epidermis, the primary role of the stratified layer is to act as a shield. This is essential for maintaining overall skin health and integrity, allowing it to fulfill its role in protecting underlying tissues from damage.

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Melanin production

Absorption of nutrients

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