Name the three main layers of the skin.

• A. Stratum corneum, Dermis, and Subcutaneous tissue.
• B. Epidermis, Dermis, and Hypodermis.
• C. Epidermis, Hypodermis, and Muscle.
• D. Dermis, Hypodermis, and Hair follicles.

Answer: (B)

Think of the skin as three distinct layers with different roles. The outermost is the epidermis, which forms the protective barrier you can see and shed. Beneath it lies the dermis, a thick, fibrous layer that contains blood vessels, nerves, sweat and oil glands, and hair follicles. The deepest layer is the hypodermis, also called subcutaneous tissue, made mainly of fat and connective tissue to cushion, insulate, and anchor the skin to underlying structures. That combination—epidermis, dermis, and hypodermis—best describes the skin’s three main layers. The other options mix in elements that aren’t whole layers (like a single epidermal sublayer or structures such as hair follicles) or include something not part of the skin (like muscle), which is why they aren’t correct.