👉 Fluids play a crucial role in maintaining the body's homeostasis and overall health. The primary fluids involved are water, blood plasma, and various interstitial fluids. Water constitutes about 60% of an adult's body weight and is essential for numerous physiological processes, including temperature regulation, nutrient transport, and waste elimination. Blood plasma, which makes up about 55% of blood volume, is a colorless liquid composed mainly of water, proteins, electrolytes, and nutrients. It acts as a medium for transporting these substances throughout the body. Interstitial fluids, found between cells and within tissues, make up about 30% of body water and are vital for cellular function, nutrient exchange, and waste removal. Together, these fluids ensure that cells receive the necessary resources and that waste products are effectively eliminated, supporting optimal bodily functions.
