The Lymphsystem (lat. Systema lymphaticum) (Lymphe = body water, too griech. lymphe: clear water) is a part of the defense system of the vertebrate animals against pathogen, foreign particle and diseased changed body components (e.g. tumor cells). The lymphatic vessel system is divided into the lymphatic organs and.

Lymphatic organs

The lymphatic organs are specialized organs for the differentiation and Vermehrung of the Lymphozyten serve. To the lymphatic organs belong:

• Thymus
• Bursa Fabricii of the birds
• (Lymphfollikel)
• Peyer plates
• Marrow
• Almonds
• Spleen
• Lymph node

Thymus, marrow and Bursa Fabricii and/or organ are called primary lymphatic organs, because in them the primary differentiation of the t and/or B-Lymphozyten takes place. In the remaining, the secondary lymphatic organs, only the Vermehrung of these cells takes place. Spleen and marrow take over beyond that still further functions with blood formation, Blutspeicherung and blood dismantling.

Lymphatic vessel system

The lymphatic vessel system begins as Lymphkapillaren in the periphery, these ends thus "blindly". The Lymphkapillaren unites to larger lymphatic vessels. Into these lymphatic vessels the lymph nodes are inserted as Filterstationen. Thus lymphatic vessels serve also the spreading of the Lymphozyten. The lymphatic vessels unite to which flow into the upper Hohlvene and thus into the Venensystem. Contrary to the Blutkreislauf there are thus no "Lymphkreislauf". In the Lymphsystem per day only about 2 litres of are transported. The transport of the lymphpflichtigen liquid effected via the not arranged contractions of the individual Lymphangione (Lymphherzen) about 10 times per minute contract themselves. The follows then the slightest resistance toward after proximally extending lymphatic vessels. By a manual drainage and an intermittent compression the Lymphangione can become lively and contract thus about 60 times per minute.

Apart from the meaning with the Lymphozytenzirkulation plays the lymphatic vessel system an important role for the liquid evacuation from the different parts of the body. Parts of the blood withdraw in the capillary bed of the fabrics as inter+cellular liquid (Gewebswasser). This is derived to the one over the Venen, to a substantial part however as Lymphe over the lymphatic vessels. The liquid transported over the lymphatic vessel system flows finally into the upper Hohlvene, with which both body fluids (Lymphe and blood) are again united, the waste materials over the large intestine is separated.

See also

Immune system

Related links

Articles in category "Lymphsystem"

We found here 32 articles.