News tagged with skin

Related topics: stem cells , cells , genes , skin cancer , skin cells

Deodorant use ok for radiotherapy patients

Women undergoing radiotherapy for breast cancer can use deodorant without fear of increased underarm skin reaction, pain, itching or burning, research suggests.

Feb 27, 2015
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A single DNA tweak leads to blond hair

A single-letter change in the genetic code is enough to generate blond hair in humans, in dramatic contrast to our dark-haired ancestors. A new analysis by Howard Hughes Medical Institute (HHMI) scientists ...

Jun 01, 2014
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Psychology professor examines the taste system

What we view as the sense of taste is actually a combination of smell, taste and texture, with smell playing a major role. A single taste bud can have dozens of receptor cells that send signals of sour, sweet, salty and bitter ...

Feb 23, 2015
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Skin

The skin is the outer covering of the body. In humans, it is the largest organ of the integumentary system made up of multiple layers of mesodermal tissues, and guards the underlying muscles, bones, ligaments and internal organs. Skin of a different nature exists in amphibians, reptiles, birds. Human skin is not unlike that of most other mammals except that it is not protected by a pelt and appears hairless though in fact nearly all human skin is covered with hair follicles. The adjective cutaneous literally means "of the skin" (from Latin cutis, skin).

Because it interfaces with the environment, skin plays a key role in protecting (the body) against pathogens and excessive water loss. Its other functions are insulation, temperature regulation, sensation, synthesis of vitamin D, and the protection of vitamin B folates. Severely damaged skin will try to heal by forming scar tissue. This is often discolored and depigmented.

In humans, skin pigmentation varies among populations, and skin type can range from dry to oily. Such skin variety provides a rich and diverse habit for bacteria which number roughly a 1000 species from 19 phyla.

This text uses material from Wikipedia licensed under CC BY-SA