Name the primary and secondary lymphoid organs
Immune system is a system that protects the body from harmful and foreign microbes and particle. The lymphatic system which comprises lymphoid organs and vessels, detects the presence of microbes and produces lymphocytes and phagocytes. These blood cells kills the microbes and protects our body. Lymphatic system is present all around the body to thoroughly examine the body. When there is malfunction of a lymphoid organ, then the person gets sick or ill. Primary lymphoid organs: Bone marrow Thymus Secondary lymphoid organs: Spleen Lymph nodes Tonsils Peyer’s patches of small intestine Appendix
