Which epidermal layer is also known as the horny layer?

Which epidermal layer is also known as the horny layer?

• A. Stratum corneum
• B. Dermatology
• C. Endocrine system
• D. Mitosis

Answer: (A)

The outermost layer of the epidermis is the horny layer, and it is called the stratum corneum. This layer consists of flattened, dead keratin-filled cells that form a tough, waterproof barrier, protecting deeper tissues and reducing water loss. Its name and function come from its horn-like, keratin-rich characteristics. The other options refer to a field of study (dermatology), a body system (endocrine system), or a process (mitosis), none of which describe the skin’s outer protective layer.

The outermost layer of the epidermis is the horny layer, and it is called the stratum corneum. This layer consists of flattened, dead keratin-filled cells that form a tough, waterproof barrier, protecting deeper tissues and reducing water loss. Its name and function come from its horn-like, keratin-rich characteristics. The other options refer to a field of study (dermatology), a body system (endocrine system), or a process (mitosis), none of which describe the skin’s outer protective layer.