What are the three layers of the skin?

The three layers of the skin are accurately identified as the epidermis, dermis, and hypodermis. The epidermis is the outermost layer and is responsible for providing a protective barrier and contains various cells types, including keratinocytes and melanocytes.

The dermis, situated beneath the epidermis, contains connective tissue, blood vessels, nerves, and various glands, such as sweat and sebaceous glands, which play crucial roles in thermoregulation and maintaining skin hydration.

Finally, the hypodermis, also known as the subcutaneous layer, is primarily composed of fat and connective tissue. It acts as an insulator and cushion, helping to protect underlying structures and providing energy storage.

The other options do not accurately represent the accepted anatomical layers of the skin, as they either use vague terminology or incorrect terminology that does not align with an understanding of skin structure.