Lymph nodes are very small clusters of immune cells that function as part of the bodyâs immune system. There are more than 600 lymph nodes throughout the body, but the ones most frequently enlarged or swollen are the lymph nodes in the neck, under the chin, in the armpits, and in the groin.here are more than 600 lymph nodes throughout the body, but the ones most frequently enlarged or swollen are the lymph nodes in the neck, under the chin, in the armpits, and in the groin.
Uses of sulfuric acid. By far the largest amount of sulfuric acid is used to make phosphoric acid, used, in turn, to make the phosphate fertilizers, calcium dihydrogenphosphate and the ammonium phosphates. It is also used to make ammonium sulfate, which is a particularly important fertilizer in sulfur-deficient.
Sulphur compounds such as the sulphites (E221-228) are used to inhibit the growth of bacteria e.g. in wine, dried fruits, vegetables in vinegar or brine.Sorbic acid (E200) can be used for many different purposes, including the preservation of potato products, cheese and jam.o delay the spoiling of foodstuffs by micro-organisms, anti-microbial substances are used which inhibit, delay or prevent the growth and proliferation of bacteria, yeasts and moulds.