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A nail is a protective plate characteristically found at the tip of the digits (fingers and toes) of all primates, corresponding to the claws in other tetrapod animals. Fingernails and toenails are made of a tough rigid protein called alpha-keratin, a polymer also found in the claws, hooves and horns of vertebrates.
The integumentary system includes skin, hair, scales, feathers, hooves, and nails. It has a variety of additional functions: it may serve to maintain water balance, protect the deeper tissues, excrete wastes, and regulate body temperature, and is the attachment site for sensory receptors which detect pain, sensation, pressure, and temperature.
Human anatomy Anatomy of the basic parts of a human nail. In human anatomy, "cuticle" can refer to several structures, but it is used in general parlance, and even by medical professionals, to refer to the thickened layer of skin surrounding fingernails and toenails (the eponychium), and to refer to the superficial layer of overlapping cells covering the hair shaft (cuticula pili), consisting ...
Jeanine Edwards. Updated July 12, 2023 at 6:40 PM. My nail tech told me to stop ruining my nails with gel manicures and to use this quick-drying, long-lasting polish on Amazon instead. Our team is ...
A skin condition, also known as cutaneous condition, is any medical condition that affects the integumentary system—the organ system that encloses the body and includes skin, nails, and related muscle and glands. The major function of this system is as a barrier against the external environment.
Onycholysis is a common medical condition characterized by the painless detachment of the nail from the nail bed, usually starting at the tip and/or sides. [1] On the hands, it occurs particularly on the ring finger but can occur on any of the fingernails. It may also happen to toenails.
A nail disease or onychosis is a disease or deformity of the nail. Although the nail is a structure produced by the skin and is a skin appendage, nail diseases have a distinct classification as they have their own signs
Signs and symptoms. Onychauxis frequently shows up clinically as discoloration, subungual hyperkeratosis, and loss of nail plate translucency. [3] It may cause pain, and over time, distal onycholysis, subungual bleeding, subungual ulceration, or an elevated risk of onychomycosis might aggravate matters. [4] [5]
Onychomadesis is a periodic idiopathic shedding of the nails beginning at the proximal end, possibly caused by the temporary arrest of the function of the nail matrix. [1] : 784 [2] : 660 One cause in children is hand, foot, and mouth disease. [3] This generally resolves without complication.
Manicure. A woman giving another woman a manicure. Belleville, Ontario, 1930s. A manicure is a mostly cosmetic beauty treatment for the fingernails and hands performed at home or in a nail salon. A manicure usually consists of filing and shaping the free edge of nails, pushing and clipping (with a cuticle pusher and cuticle nippers) any ...