Before actual description have a loot at the video of Organs of Immune system from handwrittentutorials.com from the followinf link: https://ourimmunesystem.webnode.in/videos/     Immune Organs - organs of the immune system The immune system is composed of different immune organs, cells...

Primary lymphoid  Organs(introduction) and Thymus Primary Lymphoid Organs In humans the largest part of the lymphocyte development ccurs in specialized tissue of the primary lymphatic organs: bone marrow (liver in the fetal period) andthymus. There a large number of immunocompetent...

Primary lymphoid organ: Bone marrow       Production   The production of blood cells in bone marrow begins roughly 4-5 months after conception. Stem cells immigrate from the liver into the bone marrow, where the "microenvironment" is...

Other organs involved: Tonsils and adenoids - They are two lumps of tissues, on either sides in the throat, inserted in a pocket beside the palate (that's the roof of the mouth). The low edge of every single tonsil is near the tongue...way at the back of the throat. The adenoids really are a single...

    The secondary lymphatic organs represent the location where the defense battles take place. In them the T- and B-lymphocytes that have matured in the thymus and in the bone marrow develop further when they come into contact with antigens, leading to a clonal...

  LYMPH NODES   Lymph nodes are the sites where immune responses are mounted to antigens in lymph. They are encapsulated beanshaped structures containing a reticular network packed with lymphocytes, macrophages, and dendritic cells. Clustered at junctions of the lymphatic vessels, lymph...

Introduction   The spleen is a lymphatic organ that plays a fundamental role in protecting the body from invading pathogens. Being an organ that is interposed in the blood stream, it also stands as the body's largest blood filter that furthermore brings contribution to detecting senescent,...

MUCOSAL-ASSOCIATED LYMPHOID TISSUE Introduction The mucosa-associated lymphoid tissue (MALT) initiates immune responses to specific antigens encountered along all mucosal surfaces. MALT inductive sites are secondary immune tissues where antigen sampling occurs and immune responses are initiated....

Cutaneous-Associated Lymphoid Tissue   The skin is an important anatomic barrier to the external environment, and its large surface area makes this tissue important in nonspecific (innate) defenses. The epidermal (outer) layer of the skin is composed largely of specialized epithelial cells...