IMMUNOLOGY

Detailed explanation-1: -The lymph nodes filter lymph fluid as it flows through them, trapping bacteria, viruses, and other foreign substances, which are then destroyed by the lymphocytes. The lymph system is also an important part of the immune system, the body’s defence against disease.

Detailed explanation-2: -Lymph fluid is carried to the lymph nodes by lymphatic vessels. The lymph nodes filter out harmful substances and waste products. They also contain immune cells called lymphocytes that destroy cancer cells and bacteria. The filtered fluid is then returned to the blood circulation.

Detailed explanation-3: -Lymph nodes filter lymph. They trap germs and damaged or abnormal cells, and activate immune responses to help your body get rid of them. Lymph nodes contain lots of white blood cells called lymphocytes. If you have an infection, the lymphocytes multiply inside your lymph nodes.