👉 The official fluid, also known as the primary fluid or blood plasma, is a vital component of biological systems that serves as the medium for transporting nutrients, oxygen, hormones, and waste products throughout the body. It constitutes approximately 55% of an adult's total body weight and is primarily composed of water, proteins (including albumin, globulins, and fibrinogen), electrolytes, glucose, lipids, and various dissolved substances. Plasma plays a crucial role in maintaining homeostasis, immune responses, blood clotting, and overall physiological functions. It is produced by the bone marrow and circulates in the vascular system, where it is continuously renewed through a balance between production and breakdown.
