![]() Fingernail color and condition changes are rarely the first clues of serious illness. Healthy fingernails and toenails should generally be pink - with the healthy nail plate being pink and the nail being white as it grows off the nail bed. ![]() Health-care and pre-hospital-care providers (EMTs or paramedics) often use the fingernail beds (CRT or blanch test) as a cursory indicator of distal tissue perfusion of individuals who may be dehydrated or in shock. Keratin is one of a family of fibrous structural proteins and is the key structural material making up hair, horns, claws, hooves, and the outer layer of human skin. Main Digestįingernails and toenails are made of a tough protective protein called keratin. The nail functions by protecting the digits and contributing to tactile sensation. Alpha-keratin is found in the hooves, claws, and horns of vertebrates. Fingernails and toenails are made of a tough protective protein called alpha-keratin, a polymer. ![]() Nail (Anatomy) In anatomy, a nail is defined as a horn-like envelope covering the tips of the fingers and toes in humans, most non-human primates, and a few other mammals. Pitted brown spots in fingernails may indicate skin and a joint disorder called psoriasis. Healthy fingernails and toenails should be white as it grows off the nail bed and the nail plate a pinkish color. For instance, white nails may be indicative of kidney or liver disorders or anemia. Synopsis: The nail color of fingernails and toenails can reveal certain severe health conditions. On This Page: Summary - Main Article - About/Author
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