Yes, primary nodules don't have germinal centers(active B cells) while secondary nodules do.
The small intestine has the most lymph nodules and bacteria in the digestive tract. The lymph nodules help with immune responses, while the bacteria play a key role in digestion and nutrient absorption.
kidney spleen small lymph nodules
the microbe of tuberculosis enters the lungs and the body responds by sealing it off inside nodules or tubercles
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.
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.
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
Oh, dude, the mucosa is the one with the most lymph nodules. It's like the VIP section for immune cells in your digestive system. So, yeah, if you want to hang out where all the action is happening, that's the place to be.
White blood cells, specifically those called lymphocytes.
The likely word is "lymph" (a secondary fluid system of the body).
They are called either lymph ducts or lymph capillaries.