The size of lymph glandulars in adults is smaller sized, as compared to those in youngsters in between the age group 10 - 12. Lymph node is situated in the lymphatic device, which is dispersed throughout the body. It can be gift separately or in teams. Concerning 500 - 600 lymph nodes exist in the human body. Groups of lymph nodules exist in the neck, collarbone, under the arms (armpit), as well as groin.