• Anglický jazyk

Perspiration

Autor: Lambert M. Surhone

Perspiration is the production of a fluid, consisting primarily of water as well as various dissolved solids, that is excreted by the sweat glands in the skin of mammals. Sweat contains the chemicals or odorants 2-methylphenol and 4-methylphenol, as well... Viac o knihe

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O knihe

Perspiration is the production of a fluid, consisting primarily of water as well as various dissolved solids, that is excreted by the sweat glands in the skin of mammals. Sweat contains the chemicals or odorants 2-methylphenol and 4-methylphenol, as well as a small amount of urea. In humans, sweating is primarily a means of thermoregulation, although it has been proposed that components of male sweat can act as pheromonal cues. Evaporation of sweat from the skin surface has a cooling effect due to the latent heat of evaporation of water. Hence, in hot weather, or when the individual's muscles heat up due to exertion, more sweat is produced. Sweating is increased by nervousness and nausea and decreased by cold. Animals with few sweat glands, such as dogs, accomplish similar temperature regulation results by panting, which evaporates water from the moist lining of the oral cavity and pharynx. Primates and horses have armpits that sweat like those of humans. Although sweating is found in a wide variety of mammals, relatively few, such as humans and horses, produce large quantities of sweat in order to cool down.

  • Vydavateľstvo: Betascript Publishers
  • Rok vydania: 2009
  • Formát: Paperback
  • Rozmer: 220 x 150 mm
  • Jazyk: Anglický jazyk
  • ISBN: 9786130309602

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