👉 Fluids in the body can be broadly categorized into two main types: aqueous fluids and non-aqueous fluids. Aqueous fluids, which make up about 60% of the body's total fluid volume, consist primarily of water and are essential for various physiological functions such as nutrient transport, waste removal, and maintaining cellular integrity. These include blood plasma, interstitial fluid, and intracellular fluid. Non-aqueous fluids, on the other hand, include electrolytes like sodium, potassium, and chloride, as well as organic compounds such as urea and lactate. These fluids are crucial for maintaining osmotic balance, nerve impulse transmission, and pH regulation. Together, these fluids ensure the body's homeostasis and proper functioning of its systems.