👉 The obligation fluid, often referred to as obligatory fluids, is a category of fluids that must be present in the body regardless of the individual's hydration status. These include essential components like blood, lymph, and cerebrospinal fluid, which are crucial for maintaining homeostasis, transporting nutrients, removing waste, and providing a protective environment for cells. Unlike other fluids that can be regulated by the body's water balance, obligatory fluids are indispensable for life and must be adequately supplied to ensure proper physiological function.
