<P> Body fluid, bodily fluids, or biofluids are liquids within the bodies of living people . In normal healthy men, the total body water is about 60% of the total body weight; it is slightly lower in women . A 70 kg (160 pound) man, then, has 42 liters of water in his body . This is divided between ICF and ECF in a two - to - one ratio: 28 liters are inside cells and 14 liters are outside cells . This ECF compartment is divided into the fluid between cells - the interstitial fluid volume - and the vascular volume, also called the blood plasma volume . The vascular volume is divided into the venous volume and the arterial volume; and the arterial volume has a conceptually useful but unmeasurable subcompartment called the effective arterial blood volume </P> <P> There are approximately 6 to 10 liters of lymph in the body, compared to 3.5 to 5 liters of blood . </P>

Most fluid in the body is found where