Yes, primary nodules don't have germinal centers(active B cells) while secondary nodules do.
it is the colon and duodenum
kidney spleen small lymph nodules
the microbe of tuberculosis enters the lungs and the body responds by sealing it off inside nodules or tubercles
Lymphatic Nodules-Any of the small bodies located along the lymphatic vessels, particularly at the neck, armpit, and groin, that filter bacteria and foreign particles from lymph fluid. As lymph flows through a lymph node at least 99 % of the antigens in the lymph are removed. The lymphatic organs are organs that produces lymphocytes or is associated with lymphocyte function, for example, the lymph nodes, spleen, and thymus.
The parts of the lymphatic system are:cervical lymph nodes,right lymphatic duct,thoracic lymph nodes,axillary lymph nodes,mesenteric lymph nodes,Iliac lymph nodes,inguinal lymph nodes,left lymphatic duct,heart,thoracic duct,spleen, cisterna chyli.
lymph capillary Lymph fluid is filtered in lymph nodes. Lymph nodes are along lymph vessels which that run along blood vessels. Lymph vessels draw in interstitial fluid (fluid between cells) and it them becomes lymph fluid. Lymph nodules are in connective tissue in place of high traffic and does not function as a filter because it's not along a lymph vessel.
the primary concentration is in the cervical spine
Thymus
White blood cells, specifically those called lymphocytes.
The likely word is "lymph" (a secondary fluid system of the body).
What is a lymphatic system doctor called? The doctor for the lymphatic system is called an immunologist. The lymphatic system is included in the study of immunology and the key primary organs of the immune system are the bone marrow and thymus, secondary are the lymphatic tissues such as the lymph nodes, lymph vessels, spleen, adenoids, tonsils and skin.
The submucosa (it needs to make sure that no external haters cruise through and pop a cap in their homies).