RT Book, Section A1 Alessandrini, Aurora A1 Starace, Michela A1 Piraccini, Bianca Maria A2 Tosti, Antonella A2 Piraccini, Bianca Maria SR Print(0) ID 1201698032 T1 Nail Anatomy and Physiology: What You Need to Know T2 Disorders of the Hair and Nail: Diagnosis and Treatment YR 2023 FD 2023 PB McGraw Hill PP New York, NY SN 9781260462470 LK dermatology.mhmedical.com/content.aspx?aid=1201698032 RD 2024/10/09 AB SUMMARYNail are important in many daily activities.The nail unit consist of nail matrix, nail folds, nail bed and hyponychium, and any of these parts has a specific composition and functions.Complete regrowth of a fingernail after avulsion can take 4 to 6 months, and up to 1 year for a toenail.