👉 A constituent fluid, often referred to as plasma, is a vital component of bodily fluids that constitutes about 55% of blood volume. It's a complex mixture primarily composed of water, but also includes proteins, nutrients, hormones, waste products, and cells. This fluid plays a crucial role in maintaining homeostasis, transporting substances throughout the body, supporting immune function, and facilitating various biochemical reactions necessary for life. Its unique composition and dynamic nature make it indispensable for overall health and bodily functions.