16. The portion of the living skin that supports the nail plate as it grows toward the free edge is called A matrix B. nail bed C. cuticle D. ligament 17. The is the whitish, half-moon shape underneath the base of the nail. A lunula Broot C. sidewall D. free edge 18. The part of the nail plate that extends over the tip of the finger or toe is called A sidewall B. bed epithelium C. matrix D. free edge 19. The is the fold of skin overlapping the side of the nail. A. nail groove B. hyponychium C. sidewall D. eponychium 20. Tissue that adheres directly to the natural nail plate but which can be removed with gentle scraping is the D. cuticle A. perionychium B. hyponychium C. eponychium
