What is the outermost layer of the skin called?

What is the outermost layer of the skin called?

• A. Dermis
• B. Hypodermis
• C. Subcutaneous layer
• D. Epidermis

Answer: (D)

The outermost layer is the epidermis. It forms the protective shield against environmental factors and water loss, and it’s avascular, getting nutrients from the underlying dermis. The epidermis has sublayers, with the outermost stratum corneum made of dead, keratin-rich cells that continually shed and are renewed to maintain the barrier. Beneath it lies the dermis, the thicker middle layer that houses blood vessels, nerves, hair follicles, and glands, and deeper still is the hypodermis (subcutaneous layer), a fatty layer that anchors and insulates the skin. In barbering, respecting this outer layer helps protect the skin’s barrier during shaving, exfoliation, and product use.

The outermost layer is the epidermis. It forms the protective shield against environmental factors and water loss, and it’s avascular, getting nutrients from the underlying dermis. The epidermis has sublayers, with the outermost stratum corneum made of dead, keratin-rich cells that continually shed and are renewed to maintain the barrier. Beneath it lies the dermis, the thicker middle layer that houses blood vessels, nerves, hair follicles, and glands, and deeper still is the hypodermis (subcutaneous layer), a fatty layer that anchors and insulates the skin. In barbering, respecting this outer layer helps protect the skin’s barrier during shaving, exfoliation, and product use.