IMMUNOLOGY

Detailed explanation-1: -The spleen is located in the abdominal (tummy) area on the left side, just under the diaphragm. It is the largest of our lymphatic organs. The spleen does many things as it filters and monitors our blood. It contains a range of cells, including macrophages – the body’s garbage trucks.

Detailed explanation-2: -Most of the body’s organs remove dead cells and other waste using the lymphatic system. Lymphatic vessels run alongside blood vessels and transport out lymph, a colorless fluid containing infection-fighting immune cells and waste. Lymph is filtered through the lymph nodes and then returned back into the bloodstream.

Detailed explanation-3: -Lymph is filtered as it passes through lymph nodes. This process removes bacteria and viruses before the lymph returns to the bloodstream. Lymph nodes become enlarged when they trap germs and when white blood cells arrive to fight the infection.