cortices. 1  1a (1) : the outer or superficial part of an organ or bodily structure (such as the kidney, adrenal gland, or cerebellum or a bone); especially : cerebral cortex (2) : the proteinaceous usually pigmented layer of a hair below the cuticleb : the outer part of some organisms (such as paramecia)
If a toenail has completely fallen off, it can take up to 18 months for it to grow back. A toenail can take longer to grow back if the nail bed has permanent damage. In some cases, old nails do not completely fall off, and they act as a protective...
Your nail will grow back and it may have ridges at first or otherwise be deformed. It will take a year or more for the nail to cover the nail bed. Yes it will grow back. I lost 2 of my nails, it will take 3-4 months to grow back. Go to the doctor because sometimes they can put something on your finger to help the nail grow back straight. Don't forget to clean the finger in the morning and before bed, good luck!