A normal body coordinates the activities of various organs and systems through regulation, and keeps the internal environment relatively stable.
The steady state of the internal environment is not a fixed static state, but a dynamic equilibrium state. It shows that the physical and chemical properties of the internal environment only change in a small range, such as maintaining body temperature at around 37℃, maintaining plasma pH at around 7.35-7.45, and balancing blood sugar.
The homeostasis of internal environment is a necessary condition for cells to maintain normal physiological functions and the body to maintain normal life activities. The imbalance of internal environment can lead to diseases. The maintenance of homeostasis of internal environment depends on the stability of the functional state of various organs, especially internal organs, the normality of various regulatory mechanisms of the body and the bonding function of blood.
Steady-state: The state in which the normal organism keeps the internal environment relatively stable by regulating the activities of various organs and systems is called steady-state.
The essence of steady state: the chemical composition and physical and chemical properties of the internal environment remain relatively stable.