Post by beauty on Feb 2, 2012 6:47:22 GMT -5
What are the functions of skin?
Protect the skin, feeling, regulating body temperature, absorption, secretion and excretion, metabolism and other physiological functions.
Protection of skin covering the surface of the body, epidermal cell layers of tight junctions. Dermis contains large amounts of collagen fibers and elastic fibers, both tough and soft skin, has a certain tensile strength and elasticity. When subject to external friction or traction, it will still remain intact, and after removal of the external force restitution. Loose subcutaneous tissue, contains a large number of fat cells, the role of a cushion. The skin can block the current, the skin stratum corneum is a poor conductor, the current has some insulation, a certain amount of current to prevent damage to the human body. Cuticle and skin melanin particles can reflect and absorb some UV, injected into the body to prevent injury to its internal organization. Sebaceous glands secrete sebum, sweat glands secrete sweat, a mixture of both, the skin surface skin layer of emulsion film, to moisturize the cuticle and prevent dry skin. Sweat can be diluted to some extent, chemical pH, protect the skin. The skin surface sebum film weak acid, can prevent the skin surface bacteria, fungi invasion, and have antibacterial, bactericidal effect.
Sensory function in skin is rich in sensory nerve endings, a variety of stimuli can experience the outside world, resulting in a variety of different feelings, such as touch, pain, pressure sensation, heat sensation, cold sensation and so on.
Regulation of body temperature when the outside temperature is high, a large number of open skin capillary network, surface blood flow, increased heat of skin, so that the temperature not too high. When the temperature is low, the skin capillary network part of the closed part of the blood without the body surface, directly from the arteriovenous anastomosis into the veins, reducing blood flow to the surface, reduce heat to maintain body temperature. When the temperature is high, the body a lot of sweat, sweat evaporation process can be taken away part of the body heat, played a role in reducing body temperature.
Secretion and excretion of the skin can secrete sweat glands, sebaceous glands secrete sebum. The skin surface sebum mixed with sweat, sebum emulsion film formation, moisture protection of the skin and hair. The skin through sweat excretion of metabolic waste generated, such as uric acid, urea, etc.
Skin absorption is not a strict no absolute permeability, which can selectively absorb external nutrients. The skin to absorb nutrients directly from the outside world there are three ways: nutrients penetrate the stratum corneum membrane, into the skin cells; macromolecules and a small amount of water-soluble substances through the pores, Porokeratosis is absorbed; a small amount of nutrients penetrate through the surface of the cell gap dermis.
Metabolism of skin cell division and reproduction, updated metabolic capacity. Metabolism in the skin 10 pm to 2 am between the most active during this period to ensure a good sleep on the beauty of good.
Skin as part of the body, is also involved in the body's metabolism. There are a lot of moisture in the skin and fat, they not only make the skin plump and moist, but also provide energy for the whole body activity, you can add water or blood in the body of excess water storage. Skin is the reservoir of sugar, can regulate blood sugar levels to keep blood sugar normal.
www.elady.tw/wholesale
Protect the skin, feeling, regulating body temperature, absorption, secretion and excretion, metabolism and other physiological functions.
Protection of skin covering the surface of the body, epidermal cell layers of tight junctions. Dermis contains large amounts of collagen fibers and elastic fibers, both tough and soft skin, has a certain tensile strength and elasticity. When subject to external friction or traction, it will still remain intact, and after removal of the external force restitution. Loose subcutaneous tissue, contains a large number of fat cells, the role of a cushion. The skin can block the current, the skin stratum corneum is a poor conductor, the current has some insulation, a certain amount of current to prevent damage to the human body. Cuticle and skin melanin particles can reflect and absorb some UV, injected into the body to prevent injury to its internal organization. Sebaceous glands secrete sebum, sweat glands secrete sweat, a mixture of both, the skin surface skin layer of emulsion film, to moisturize the cuticle and prevent dry skin. Sweat can be diluted to some extent, chemical pH, protect the skin. The skin surface sebum film weak acid, can prevent the skin surface bacteria, fungi invasion, and have antibacterial, bactericidal effect.
Sensory function in skin is rich in sensory nerve endings, a variety of stimuli can experience the outside world, resulting in a variety of different feelings, such as touch, pain, pressure sensation, heat sensation, cold sensation and so on.
Regulation of body temperature when the outside temperature is high, a large number of open skin capillary network, surface blood flow, increased heat of skin, so that the temperature not too high. When the temperature is low, the skin capillary network part of the closed part of the blood without the body surface, directly from the arteriovenous anastomosis into the veins, reducing blood flow to the surface, reduce heat to maintain body temperature. When the temperature is high, the body a lot of sweat, sweat evaporation process can be taken away part of the body heat, played a role in reducing body temperature.
Secretion and excretion of the skin can secrete sweat glands, sebaceous glands secrete sebum. The skin surface sebum mixed with sweat, sebum emulsion film formation, moisture protection of the skin and hair. The skin through sweat excretion of metabolic waste generated, such as uric acid, urea, etc.
Skin absorption is not a strict no absolute permeability, which can selectively absorb external nutrients. The skin to absorb nutrients directly from the outside world there are three ways: nutrients penetrate the stratum corneum membrane, into the skin cells; macromolecules and a small amount of water-soluble substances through the pores, Porokeratosis is absorbed; a small amount of nutrients penetrate through the surface of the cell gap dermis.
Metabolism of skin cell division and reproduction, updated metabolic capacity. Metabolism in the skin 10 pm to 2 am between the most active during this period to ensure a good sleep on the beauty of good.
Skin as part of the body, is also involved in the body's metabolism. There are a lot of moisture in the skin and fat, they not only make the skin plump and moist, but also provide energy for the whole body activity, you can add water or blood in the body of excess water storage. Skin is the reservoir of sugar, can regulate blood sugar levels to keep blood sugar normal.
www.elady.tw/wholesale
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