ANATOMY

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: -The lymph nodes monitor the lymph flowing into them and produce cells and antibodies which protect our body from infection and disease.

Detailed explanation-3: -Antigen-activated B cells migrate to the medullary cords where they differentiate into antibody-producing plasma cells. Antibodies produced in the course of a humoral immune response leave the lymph node predominantly via the efferent lymphatic vessel.

Detailed explanation-4: -There are two main types of lymphocytes: B cells and T cells. The B cells produce antibodies that are used to attack invading bacteria, viruses, and toxins.

Detailed explanation-5: -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.