The lymphatic system during ill health

• All sinuses are clear, however in the nose there is still mucus lining it to trap foreign particles from the air.
• There are no extra white blood cells being produced because there are no pathogens invading the body.
•  The immune system keeps all B-memory and memory T-cells stored away for when the body is infected again.
• During the time of which the immune system is healthy,
•  B-memory cells are still being reproduced so they can over come the pathogens as soon as possible: before lymph nodes start to swell.
• Collects fat from the digestive system
• Allows white blood cells to travel in
• Collects fluid from tissues – prevents oedema

The lymphatic system during ill health

• Lymph nodes swell up. This is the inflammatory response.
• Swelling attracts neutrophils and macrophages to bind their antibodies and engulf invading pathogens.
• If inflammatory response fails to destroy some pathogens then the immunity response is activated.
• During the immunity response, B-lymphocytes attach to antigens with complimentary shape.
•  B-memory cells are formed for future purposes.
• Plasma cells produce antibodies for the complimentary pathogen to destroy it.  
• Also, antigens activate T-cells which then produce into memory T-cells
• And killer T-cells which then produce a protein called lymphokine to attack the pathogen.
• The immunity system is weak during the first immunity response as it has to produce complimentary antibodies for the specific antigens.
• However, the second immunity response can be overcome quickly due to the memory T-cells and memory B-cells.
• During the winter the nose sinuses produce clear mucus to wash out foreign particles or trap them to stop them from causing infections within the body.
• Stimulate production of more T cells and B cells
• Plasma cells produce many antibodies