What structures are included in the anatomy of nails?

The anatomy of nails includes the root, nail bed, and eponychium, making this answer the most accurate representation of the components involved in nail structure.

The root of the nail is located beneath the cuticle and is the area where the nail grows. The nail bed is the skin beneath the nail plate that supports the nail as it grows. The eponychium, commonly known as the cuticle, is the tissue that overlaps the nail plate and protects the area between the skin and the nail from infection.

Understanding these structures is essential for comprehensively studying nail physiology and potential nail disorders, as well as for accurate coding in medical contexts related to dermatology and podiatry. Other choices listed do not pertain directly to nail anatomy and thus do not provide the correct structures related to nails.