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.
I have swelling of lymph node under my jaw, but other than a VERY mild sore throat, im not sick. I remember noticing the swollen lymph node a year ago, and somehow i got over it, (I felt my dads jaw, and he had the same thing under his jaw) but im getting anxious about it again. Every once in a while, iget some discomfort in the node, if i tilt my chin to my chest, or turn my head to look behind me.