The nail plate is sealed all the way around it to protect the nail bed and the nail matrix. The seals are at the proximal nail fold, the side walls (perionychium) and under the free edge of the nail (the hyponychium).
Seals
The nail plate is sealed all the way around it to protect the nail bed and the nail matrix. The seals are at the proximal nail fold, the side walls (perionychium) and under the free edge of the nail (the hyponychium).
English 
Portuguese 
Spanish