Ladies: please read the article below: "Wearing bras & the lymphatic system"
The lymphatic system is a system of thin tubes that runs throughout the body. These tubes are called 'lymph vessels'. You may also hear them called 'lymphatic vessels'. The lymphatic system is like the blood circulation - the tubes branch through all parts of the body like the arteries and veins that carry blood. Except that the lymphatic system carries a colourless liquid called 'lymph'.
There are also lymph nodes that you cannot feel in
Other organs that are part of the lymphatic system
The lymphatic system includes other body organs. These are the Spleen, Thymus, Tonsils and Adenoids.
What does the lymphatic system do?
The lymphatic system does three main jobs in the body. It...
As the blood circulates, fluid leaks out into the body tissues. This fluid is important because it carries food to the cells and waste products back to the bloodstream. The leaked fluid drains into the lymph vessels. It is carried through the lymph vessels to the base of the neck where it is emptied back into the bloodstream. This circulation of fluid through the body is going on all the time.
This is the job of the spleen. It filters the lymph to take out all the old worn out red blood cells. These are destroyed and replaced by new red blood cells that have been made in the bone marrow.
When people say "I'm not well, my glands are up" they are really saying they have swollen lymph nodes because they have an infection. The lymphatic system helps fight infection in many ways such as:
* Helping to make special white blood cells (lymphocytes) that produce antibodies
* Having other blood cells called macrophages inside the lymph nodes which swallow up and kill any foreign particles, for example germs.
This function of the lymphatic system is really part of the immune system.
B cells and T cells
The white blood cells involved in the acquired immune response are called 'lymphocytes'. There are two main types of lymphocytes - B cells and T cells. B and T lymphocytes are made in the bone marrow, like the other blood cells. They have to fully mature before they can help in the immune response. B cells mature in the bone marrow. But the immature T cells travel through the blood stream to the thymus gland where they become fully developed.
What do B cells do?
B cells react against invading bacteria or viruses by making proteins called antibodies. The antibody made is different for each different bug. The antibody locks onto the surface of the invading bacteria or virus. The invader is then marked with the antibody so that the body knows it is dangerous and it can be killed off. The B cells are part of the memory of the immune system. The next time the same bug tries to invade, the B cells that make the right antibody are ready for it. They are able to make their antibody more quickly than the first time the bug invaded.
What do T cells do?
There are different kinds of T cells called:
The helper T cells stimulate the B cells to make antibodies, and help killer cells develop. Killer T cells kill the body's own cells that have been invaded by the viruses or bacteria. This prevents the bug from reproducing in the cell and then infecting other cells. Once they are fully mature, the B and T cells travel to the spleen and nodes ready to fight infection.
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