👉 The overcome fluid, also known as the overcome pressure or the pressure required to overcome a capillary resistance, is the force needed to push a fluid through narrow capillaries against the resistance posed by the walls of these tiny vessels. This pressure is crucial in physiological processes such as blood filtration in the kidneys and nutrient absorption in the intestines. It is determined by factors including the fluid's viscosity, the hydrostatic pressure in the capillaries, and the oncotic pressure exerted by proteins in the blood. When the fluid moves from a high-pressure environment (like arterioles) to a low-pressure environment (like capillaries), the overcome fluid helps ensure that essential substances are efficiently delivered to tissues while preventing excessive leakage into surrounding tissues.
