👉 Immediately, fluid refers to a substance that flows easily and moves freely without solid structure. It can take many forms, such as blood, lymph, synovial fluid, cerebrospinal fluid, or simple bodily fluids like saliva or mucus. These fluids are essential for various physiological processes, including lubrication, nutrient transport, waste removal, and protection of organs and tissues. For example, blood carries oxygen and nutrients to cells while also transporting waste products away. Synovial fluid lubricates joints, preventing friction and injury. Each type of fluid has unique properties and functions tailored to specific bodily needs, ensuring the body's smooth operation.
