What are the organs of the immune system and the fuctions
http://www.thebody.com/content/art1788.html
http://science.jrank.org/pages/3521/Immune-System-Organs-immune-system.html
http://medicalcenter.osu.edu/patientcare/healthcare_services/infectious_diseases/immunesystem/pages/index.aspx
The immune system is a complex network of various organs, tissues, and cells that work together to protect the body from harmful pathogens, such as bacteria and viruses. Here are the major organs of the immune system and their functions:
1. Bone Marrow: Located inside the bones, bone marrow is responsible for producing different types of blood cells, including white blood cells (leukocytes). These white blood cells play a crucial role in the immune response by identifying and destroying foreign substances.
2. Thymus: Located in the chest, the thymus gland is responsible for the development and maturation of certain types of white blood cells called T lymphocytes or T cells. T cells play a central role in coordinating and directing the immune response.
3. Spleen: The spleen acts as a filter for the blood, removing old or damaged red blood cells and producing antibodies. It also helps in detecting and responding to infections.
4. Lymph Nodes: These small, bean-shaped structures are distributed throughout the body and act as filters for lymph fluid, which contains immune cells. Lymph nodes help trap and destroy pathogens, as well as facilitating the production of antibodies.
5. Tonsils and Adenoids: These are located in the throat and help to identify and respond to pathogens that are inhaled or swallowed. They produce immune cells and antibodies to fight off infections.
6. Appendix: Although its exact function is still not entirely clear, the appendix is believed to play a role in immune system function, specifically as a reserve for beneficial gut bacteria.
7. Peyer's Patches: These are found in the lining of the small intestine and help to monitor and respond to harmful microorganisms.
8. Mucosa-Associated Lymphoid Tissue (MALT): MALT includes various collections of lymphoid tissue found in the mucous membranes of different organs, such as the respiratory tract, gastrointestinal tract, and reproductive system. MALT acts as the first line of defense against pathogens entering through these mucous membranes.
It's important to note that the immune system is not confined to specific organs; it also involves other tissues, such as the skin, as well as specialized cells and molecules that work together to defend the body from infections and provide long-lasting immunity.