Which of the following describes the components found in the dermis?

• A. Blood vessels, sensory receptors, hair follicles, sebaceous glands, and sweat glands
• B. Epidermis only
• C. Hair follicles only
• D. Sweat glands only

Answer: (A)

The dermis is the vascular, innervated middle layer of the skin that supports and houses many active structures. It contains blood vessels to supply nutrients and temperature regulation, and sensory receptors to detect touch, pressure, and pain. It also holds hair follicles, along with sebaceous glands that secrete oil to lubricate hair and skin, and sweat glands that help regulate temperature. The epidermis above it lacks blood vessels and is where cells divide and keratinize, so describing the dermis as containing these components best reflects its role as the supportive, haven-for-accessory structures of the skin.