The lymph system is where bacteria gets filtered. This happens with the help of B-cells. B-cells live in the lymph inactivated. Each B-cell recognizes a different type of bacteria, no two are alike. When that bacteria is detected the B-cell that "matches" it the B-cell then undergoes mitosis producing more of that specific B-cell. The lymph node becomes swollen as the B-cells attack the bacteria coming to that node.
This could not happen if someone was not able to move or doesn't move much. That is because lymph does not flow it gets pushed by the movement of muscle. As it gets pushed it gets filtered and then goes to the heart. If someone did not move the bacteria would stay and they would become prone to infection.
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The lymphatic system is also where lymphatic vessels drain excess intertitial fluid from tissue spaces and return it to the blood. Lymphatic vessels also transport dietary lipids and lipid soluble vitamins(A, D, E, and K)abosorbed by the gastrointestinal tract to the blood.
ReplyDeleteOne of the other real important things(kind of what you talked about) is that lymphatic tissue initiates highly specific responses directed against particular microbes or abnormal cells. Luckily our bodies have all these systems that work together to keep us alive and healthy.