👉 The "lesser fluid" typically refers to the plasma, which is the most abundant and primary component of blood. Plasma makes up about 55% to 58% of total blood volume and is a clear, colorless liquid that carries out many vital functions. It transports nutrients, hormones, and waste products throughout the body, helps maintain blood pressure, and plays a crucial role in immune response. Other fluids like lymph and interstitial fluid are also important but are considered less concentrated than plasma in terms of volume and composition.
