The Lymphatic system describes a network of different organs, all of which serve the immune system. This makes the lymphatic system an immune system.
The organs are connected to each other either through the bloodstream or the lymphatic vessels and react to foreign bacteria or viruses with an immune response. The body's own but altered malignant (malignant) cells are detected and removed from the organism.
The lymphatic organs
almonds: As part of the lymphatic pharyngeal ring, the tonsils (medical: tonsils) prevent the colonization of the pharynx by foreign microorganisms. In addition, the almonds, upon first contact with foreign pathogens, immediately alert the immune system.
spleen: the spleen is connected to the bloodstream and responsible for its filtration. Unusual cell structures are removed from the bloodstream and are degraded in the spleen itself. In addition, it comes here to maturation of lymphocytes (natural killer cells, B lymphocytes and T lymphocytes). These circulate after maturation in the lymphatic system. Finally, the spleen is also the storage site of monocytes, a precursor of macrophages.
bone marrow: From the stem cells in the bone marrow, the precursor cells of the lymphocytes develop. The T lymphocytes mature in the thymus, the B lymphocytes circulate in the lymphatic system and form special antibodies on contact with foreign antigens.
lymphatic vessels: the lymphatic system forms a completely separate vascular system in addition to the bloodstream. The lymph, a clear fluid, transports alien organisms to the lymph nodes, which are distributed throughout the body. ; pervades the whole body
lymph node: Filter the lymphatic fluid and contain large amounts of macrophages and lymphocytes. The lymph nodes respond to antigens in the lymph, with the differentiation of the lymphocytes and thus simultaneously accelerate the production of special antibodies (Entire process: immune reaction). As a result, the antibodies produced here are distributed throughout the lymphatic system via the lymph, so that the harmful microorganisms can also be directly controlled in other parts of the body.
thymus: located below the thyroid gland, above the heart and between the lungs. Progenitor cells from the bone marrow reach the thymus via the bloodstream and mature into T lymphocytes. Between 15 and 25 years of age, the organ largely recedes, since the differentiation of T lymphocytes then predominantly takes place in the lymph nodes.
Appendix: about 7cm long appendix on the appendix. The exact function is not completely clear, it is believed that the worm appendage acts as a retreat for useful microorganisms. In the case of diarrhea, most of the intestinal flora is flushed out, and so are the microorganisms vital to survival. The worm appendage is practically barely affected, which is why, starting from the appendix, immediately begins a resettlement and prevent deficient colonization by foreign bacteria.