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 […]
Organs in Immune System of Humans | Immunology
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