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.
In general, infections are the most common causes of lymph node enlargement. Other causes include inflammation and cancers. There is a wide variety of infections from a strep throat or ear infection, to mononucleosis or HIV infection, which can cause swelling of lymph nodes. Lymphoma and leukemia cause swelling of lymph nodes, and many cancers spread to lymph nodes. Rarely, a medication can cause swelling of a lymph node. Symptoms associated with lymph node swelling and related diseases can include pain in the area of the swelling, fever and fatigue.