
pH regulation
pH regulation is how the body maintains the natural acidity or alkalinity of its fluids, especially blood, within a narrow healthy range. This balance is crucial because even small changes can affect how cells and enzymes work. The body uses buffers, like bicarbonate, to neutralize acids or bases. The lungs help by adjusting carbon dioxide levels, which influence acidity, while the kidneys manage the excretion of acids or bases over time. Together, these systems ensure the blood remains around a pH of 7.35-7.45, supporting proper metabolic functions and overall health.