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.
1 The nail plate is the part of the nail that you can see. 2  The skin around your nails is referred to as nail folds. 3  The skin that is covered by your nail is known as a nail bed.  A cuticle is the tissue that covers the bottom of your nail to protect newly formed keratin as your nail grows.