👉 Fluids, which encompass water and other liquids like blood, saliva, sweat, and mucus, are subject to several inherent constraints. Firstly, their volume is limited by the total capacity of their storage compartments, such as blood vessels or the alveoli in lungs. Secondly, fluids must maintain a balance between concentration and solute levels to function properly; excessive dilution or concentration can lead to dysfunction. Thirdly, fluid movement is governed by physical laws like pressure gradients and surface tension, which dictate how fluids flow through various pathways. Additionally, biological systems impose constraints on fluid composition and transport to maintain homeostasis, ensuring that essential ions, nutrients, and waste products are appropriately regulated. These constraints highlight the delicate balance fluids must maintain to support life processes effectively.
