differences between left and right hemispheres. 1  for many functions, there are no substantial differences between the left and right hemispheres. 2  lateralization of function is statistical rather than absolute. 3  tendencies:
When the nail plate separates from the nail bed, it causes a white discoloration. This is called onycholysis. This can be due to infection, trauma, or products used on the nails. Other causes for onycholysis include psoriasis and thyroid disease. Pitting. Pitting refers to small depressions, or little pits in the nail.
Each nail has several parts, including: â¢ nail plate: the visible hard part of the nail. â¢ nail folds: the skin that frames the nail plate on three sides. â¢ nail bed: the skin beneath the nail plate - The cells at the base of your nail bed are the ones that actually produce the fingernail or toenail plate.