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...
Bruised the toenail and it fell off. Didn't hurt when it fell off, but it looks gross and I want it to grow back. What can I do to make it grow back faster? This is a very common problem, but the good news is that you can expect in the vast majority of cases for the toe nail to grow back over time without any problems.