👉 Visiting fluid, also known as colloid fluid, is a component of biological fluids like blood and lymph, characterized by its unique properties that allow it to remain suspended in the fluid medium without settling. This suspension is maintained by the presence of colloidal particles, such as proteins, lipids, and cellular debris, which are too large to dissolve completely but small enough to avoid rapid sedimentation. The fluid's viscosity and surface tension are significantly influenced by these particles, contributing to its role in efficient transport of substances, clotting mechanisms, and immune responses. Visiting fluid is particularly important in the circulatory system for delivering oxygen and nutrients to tissues while removing waste products.