Which layer is the deepest layer of the skin?

• A. Epidermis
• B. Dermis
• C. Subcutaneous
• D. Mucosa

Answer: (C)

Skin has distinct layers that progress from protective surface to deeper supporting tissue. The outermost layer, the epidermis, provides a protective barrier. Beneath it lies the dermis, which contains structures like glands, hair follicles, and nerves. The deepest layer associated with the skin is the subcutaneous tissue, also called the hypodermis, which is rich in adipose tissue and loose connective tissue. This layer cushions, insulates, and anchors the skin to underlying structures. Mucosa, by contrast, lines internal cavities and is not a part of the skin.