Fundamentals Of Medical Physiology -

But a crisis loomed.

And E-1173 obeyed. The oxygen disassociated from its hemoglobin and diffused down its concentration gradient into a muscle cell. Inside that muscle cell, the oxygen was immediately consumed by the in the mitochondria, the final step of aerobic respiration, to produce ATP. The jogger’s leg contracted. Homeostasis, at this microscopic level, was being maintained. fundamentals of medical physiology

This was the first law of physiology: —the body’s fierce, unyielding drive to maintain stability. But a crisis loomed