The physiological function of the kidneys has the following five points: 1. Secrete urine and excrete metabolic waste, poisons and drugs; 2. Regulate physical water and osmotic pressure: The main parts that regulate the balance of human body water and osmotic pressure

The physiological function of the kidneys has the following five points:

1. Secrete urine and excrete metabolic waste, poisons and drugs; 2. Regulate physical water and osmotic pressure: the part that regulates the balance of water and osmotic pressure in the human body is mainly in the renal tubules, distal curvature and collection ducts are impermeable, but can absorb part of the sodium salt, because the liquid is maintained in a hypotonic state; 3. Adjust the electrolyte concentration; 4. Regulate acid-base balance; A video of Kangqiao's pen talk