👉 The human fluid, also known as interstitial fluid, is a vital component of the body's internal environment, making up about 75% of total body water. This fluid fills the spaces between cells, tissues, and organs, facilitating essential physiological processes such as nutrient transport, waste removal, and cellular communication. It acts as a medium for the diffusion of gases, nutrients, and metabolic waste products, ensuring that cells receive what they need to function properly while also eliminating harmful byproducts. The composition of human fluid closely mirrors that of blood plasma, with similar concentrations of proteins, electrolytes, and other solutes, making it crucial for maintaining homeostasis and overall bodily function.
