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To review the basic microscopic signs and patterns of nail diseases and to emphasize new observations at the microscope, from the standpoint of a practicing pathol-
The nail is the shield or protective cover of those bones, and because the protection of the distal digits is one of the primary functions of nails, it is logical that the configuration of the plate conforms to that of the protected object.
Above: Illustrated diagram of the anatomy of a fingernail. Above: Microscopic images of a fingernail cross section. The top image is magnified by 4x and the bottom image is the same tissue sample as the top image centered on the nail root and nail matrix magnified by 20x.
Among its multiple functions, the nail provides counterpressure to the pulp that is essential to the tactile sensation involving the fingers and to the prevention of the hypertrophy of the distal wall tissue, produced after nail loss of the great toe nail.
1 Ιουν 2020 · A description is given of how to set up a light microscope, whether it be a brightfield light microscope on the laboratory bench, a widefield fluorescence microscope, or a confocal microscope....
1 Ιουλ 1985 · Diagram of the nail unit with the proximal nail fold, matrix, nail bed, and hyponychium reflected. The epidermis of the proximal nail fold, matrix, and nail bed is reflected back and the epidermis of the hyponychium is reflected forward to expose the underlying dermal papillae.
Function Aesthetics aside, a healthy (finger)nail has the function of protecting the distal phalanx, the fingertip, and the surrounding soft tissues from injuries. It also serves to enhance precise delicate movements of the distal digits through counter-pressure exerted on the pulp of the finger. [1] The nail then acts as a counterforce when ...
