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The skin weighs an average of four kilograms, covers an area of two square metres, and is made of three distinct layers: the epidermis, dermis, and subcutaneous tissue. [1] The two main types of human skin are: glabrous skin, the hairless skin on the palms and soles (also referred to as the "palmoplantar" surfaces), and hair-bearing skin. [3]
The five main types of psoriasis are plaque, guttate, inverse, pustular, and erythrodermic. [5] Plaque psoriasis, also known as psoriasis vulgaris, makes up about 90% of cases. [4] It typically presents as red patches with white scales on top. [4] Areas of the body most commonly affected are the back of the forearms, shins, navel area, and ...
1% of people [ 4] Vitiligo ( / ˌvɪtɪˈlaɪɡoʊ /) is a chronic autoimmune disorder that causes patches of skin to lose pigment or color. [ 1] The cause of vitiligo is unknown, but it may be related to immune system changes, genetic factors, stress, or sun exposure. [ 5][ 6] Treatment options include topical medications, light therapy ...
Skin condition. 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. [ 1] The major function of this system is as a barrier against the external environment. [ 2]
Ultraviolet radiation is helpful in the treatment of skin conditions such as psoriasis and vitiligo. Exposure to UVA, while the skin is hyper-photosensitive, by taking psoralens is an effective treatment for psoriasis.
222. Black Skin, White Masks ( French: Peau noire, masques blancs) is a 1952 book by philosopher-psychiatrist Frantz Fanon. The book is written in the style of autoethnography, with Fanon sharing his own experiences while presenting a historical critique of the effects of racism and dehumanization, inherent in situations of colonial domination ...
This article provides a list of autoimmune diseases. These conditions, where the body's immune system mistakenly attacks its own cells, affect a range of organs and systems within the body. Each disorder is listed with the primary organ or body part that it affects and the associated autoantibodies that are typically found in people diagnosed ...
Melanism. Melanistic black eastern grey squirrel ( Sciurus carolinensis) Melanistic guinea pigs ( Cavia porcellus) are rare, and are used in rituals by Andean curanderos. [ 1] Melanism is the congenital excess of melanin in an organism resulting in dark pigment . Pseudomelanism, also called abundism, is another variant of pigmentation ...