NURSING ANM AND GNM

Detailed explanation-1: -Carbonic acid then dissociates into bicarbonate and a hydrogen ion. This reaction is one of the many buffer systems in the human body; it resists dramatic changes in pH to allow a person to remain within the narrow physiological pH range.

Detailed explanation-2: -The chemical buffers passively resist changes in pH by absorbing excess H+ when pH falls or by releasing H+ ions when pH rises. Chemical buffers include proteins, phosphate, and bicarbonate buffers.

Detailed explanation-3: -The kidneys regulate the pH of the blood by excreting acids in urine. They also produce and regulate bicarbonate, which increases blood pH.

Detailed explanation-4: -Red blood cells play an important role in the removal of excess hydrogen ions in the body. This is achieved by a carbonic acid/hydrogencarbonate buffering system. Like all buffers, this system consists of weak acid/ base conjugate pairs.

Detailed explanation-5: -The pH of blood is maintained at   7.4 by the carbonic acid – bicarbonate ion buffering system.