IMMUNOLOGY

Detailed explanation-1: -Lymph nodes are small bean-shaped tissues found along the lymphatic vessels. The lymph nodes act as filters. Various immune system cells trap germs in the lymph nodes and activate the creation of special antibodies in the blood.

Detailed explanation-2: -Once the immune system identifies an invader, draining lymph nodes recruit infection-fighting T-cells within 24 hours. During the next week or so, the T-cells proliferate and induce B-cells to produce antibodies specific to the invader.

Detailed explanation-3: -During steady state, lymph nodes maintain peripheral tolerance. Upon activation, lymph nodes quickly initiate protective adaptive immunity to produce antibody, cytotoxic immune cells and memory against the invading foreign antigens.

Detailed explanation-4: -Antibodies are produced by B cells (specialized white blood cells). When an antigen comes into contact with a B cell, it causes the B cell to divide and clone. These cloned B cells-or plasma cells-release millions of antibodies into your bloodstream and lymph system.