| Popis: |
Heat generated in metabolically active organs is transported to the skin where it is removed from the body. In a warm environment, temperature variation is not large, ranging from 37 to 38 °C in metabolically active organs, such as the braien, heart, and liver, to 30–32 °C on the skin of hands and feet. Temperature change in critical central organs is strongly resisted by thermoregulatory mechanisms, while appreciable variation occurs in peripheral regions. Temperature variation throughout the body is important for four reasons: temperature determines the internal energy content of the body, temperature determines the rate at which heat is transported from warm regions to cooler regions, the rate of metabolic reaction increases with increasing temperature according to the Arrhenius equation, and temperature stimulates thermal receptors. |
