👉 The assigned fluid, typically referring to blood in a broader context but often used here to denote blood as the primary fluid of the body, is the liquid medium that circulates throughout the circulatory system. It plays a crucial role in transporting essential substances like oxygen, nutrients, hormones, and waste products between different parts of the body. Blood is composed mainly of plasma, red blood cells, white blood cells, and platelets, each serving specific functions such as oxygen transport, immune response, and clotting. The fluid's dynamic nature allows it to adapt to the body's needs, maintaining homeostasis and supporting vital physiological processes.