There are two types of immune systems: 1. The Humoral Immune System 2. The Cell Mediated Immune System. 1. The Humoral Immune System: The humoral immune system involves the antibodies that get dissolved in extracellular fluid such as blood plasma, lymph and mucus secretion. These were formally known as humors. The humoral immunity is conferred through B-cells that develop from [...]
The following points highlight the two main types of organs present in immune system of humans. The types are: 1. Primary Lymphoid Organs 2. Secondary Lymphoid Organs. Type # 1. Primary Lymphoid Organs: Primary lymphoid organs (PLO) are the major sites of lymphocyte development i.e. lymphopoiesis. Lymphocytes differentiate from lymphoid stem cells, proliferate and mature into functional cells called immuno-competent [...]
The below mentioned article provides notes on immune system. Immune Response: Any foreign protein, toxin of parasites, bacteria and viruses, when enter into the body, they interfere with host physiological processes and produce harmful effects. The "Chemical defense" mechanism of host organism that operates against such effects of parasites and others is called immune reaction or immune response. Immunology: The [...]