In the body of living creatures such as humans there is a need to maintain a balance of heat - maintain a constant temperature in the body. In the case of physical activity or high external temperature, the body temperature rises.
In the human body there are several mechanisms to maintain the heat balance:
- The secretion of sweat: In the process of secretion of sweat, water is released to the surface of the skin and evaporates, that is, moving from liquid to gaseous. This process consumes heat taken from the evaporated liquid environment. For this reason, the evaporation of sweat from the surface of the skin reduces the temperature of the body.
- Heat load: The blood fluid that is carried in the body carries with it heat from one place to another and helps maintain a constant temperature in the body. When the body temperature rises, there are changes in blood flow:
Peripheral blood vessels: located in the body's periphery (in the skin) widen, and the blood carries with it the heat of the internal organs in which the body reaches the skin. Heat goes to the environment and the body temperature drops.
- Muscle tremors (chills) and crackling teeth: In the case of low body temperature occur tremors in the muscles produce heat and raise the body temperature.
In the human body there are several mechanisms to maintain the heat balance:
- The secretion of sweat: In the process of secretion of sweat, water is released to the surface of the skin and evaporates, that is, moving from liquid to gaseous. This process consumes heat taken from the evaporated liquid environment. For this reason, the evaporation of sweat from the surface of the skin reduces the temperature of the body.
- Heat load: The blood fluid that is carried in the body carries with it heat from one place to another and helps maintain a constant temperature in the body. When the body temperature rises, there are changes in blood flow:
Peripheral blood vessels: located in the body's periphery (in the skin) widen, and the blood carries with it the heat of the internal organs in which the body reaches the skin. Heat goes to the environment and the body temperature drops.
- Muscle tremors (chills) and crackling teeth: In the case of low body temperature occur tremors in the muscles produce heat and raise the body temperature.