Which part of the nail is made up of living skin that supports the nail plate?

• A. Nail plate
• B. Nail bed
• C. Eponychium
• D. Hyponychium

Answer: (B)

The nail bed is the area of living skin that provides support for the nail plate, which is the hard part of the nail that you can see. The nail bed contains a rich supply of blood vessels and nerves, and it plays a crucial role in nail growth and health. It acts as a foundation for the nail plate, ensuring it has the necessary nutrients to grow properly. The health of the nail bed greatly affects the overall appearance and strength of the nails.

In contrast, the nail plate is a hard keratinized structure that is not living tissue. The eponychium and hyponychium are parts of the skin surrounding the nail. The eponychium is commonly referred to as the cuticle, which protects the area between the nail and the skin and does not directly support the nail plate itself. The hyponychium is the area under the free edge of the nail but does not serve the function of supporting the nail plate. Thus, the nail bed is the correct choice for the living skin that supports the nail plate.