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Snake scales are formed by the differentiation of the snake's underlying skin or epidermis. [7] Each scale has an outer surface and an inner surface. The skin from the inner surface hinges back and forms a free area which overlaps the base of the next scale which emerges below this scale. [8] A snake hatches with a fixed number of scales.
Victorian women presumably believed "ladies don't spit," and consequently might have been predisposed to develop lung infection. Shortly after the Lady Windermere syndrome was proposed, a librarian wrote a letter to the editor of Chest [27] challenging the use of Lady Windermere as the eponymous ancestor of the proposed syndrome. In the play ...
Snakeskin may either refer to the skin of a live snake, the shed skin of a snake after molting, or to a type of leather that is made from the hide of a dead snake. Snakeskin and scales can have varying patterns and color formations, providing protection via camouflage from predators. [1]
In the event of an injury that damages the skin's protective barrier, the body triggers a response called wound healing. After hemostasis, inflammation white blood cells, including phagocytic macrophages arrive at the injury site. Once the invading microorganisms have been brought under control, the skin proceeds to heal itself.
Just prior to shedding, the skin becomes dull and dry looking and the snake's eyes turn cloudy or blue-coloured. The old layer of skin splits near the mouth and the snake wriggles out, aided by rubbing against rough surfaces. In many cases the cast skin peels backward over the body from head to tail, in one piece like an old sock.
Timing is important to wound healing. Critically, the timing of wound re-epithelialization can decide the outcome of the healing. [11] If the epithelization of tissue over a denuded area is slow, a scar will form over many weeks, or months; [12] [13] If the epithelization of a wounded area is fast, the healing will result in regeneration.
Diagnosis is based on a skin biopsy and involvement of more than 30% of the skin. [3] TEN is a type of severe cutaneous adverse reactions (SCARs), together with SJS, a SJS/TEN, and drug reaction with eosinophilia and systemic symptoms. [5] It is called SJS when less than 10% of the skin is involved and an intermediate form with 10 to 30% ...
The diagnosis is based on involvement of less than 10% of the skin. [2] It is known as TEN when more than 30% of the skin is involved and an intermediate form with 10 to 30% involvement. [3] A positive Nikolsky's sign is helpful in the diagnosis of SJS and TEN. [9] A skin biopsy is helpful, but not required, to establish a diagnosis of SJS and ...