👉 Fluids, also known as bodily fluids or bodily liquids, are substances that circulate within the body, playing crucial roles in maintaining homeostasis and supporting various physiological functions. These include blood, which transports oxygen, nutrients, hormones, and waste products; lymph, involved in immune responses and fluid balance; synovial fluid, which lubricates joints; mucus, which protects and moistens surfaces like those in the respiratory and digestive tracts; and cerebrospinal fluid, which cushions the brain and spinal cord. Together, these fluids ensure that cells receive essential materials, waste products are removed, and the body maintains its internal environment.
