FLUID COMPARTMENTS AND FLUID SHIFTS. Water accounts for a total of 60-70% of body weight and is contained in three compartments: intracellular, interstitial and intravascular. Intracellular water accounts for about 40% of body weight and 70% of total body water.
Which lymph nodes are swollen can help identify the problem. 1  The glands on either side of the neck, under the jaw, or behind the ears commonly swell when you have a cold or sore throat.  Glands in the armpit (axillary lymph nodes) may swell from an injury or infection to the arm or hand.
Lymph nodes from your neck down to your groin are key to helping your body fight off illnesses. Swollen lymph nodes tell you something is wrong. So what could be the cause of swollen lymph nodes in the neck? The most common cause is an infection, especially a viral infection, such as a cold, says the Mayo Clinic in Rochester, Minn. The clinic also provides the following causes. Medical conditions such as lupus, rheumatoid arthritis and cancer can cause swollen lymph nodes as well.