Changes

The thoracic and right lymphatic ducts empty into the venous system near the collarbones. [[Lymph]] is continuously passing through the walls of the capillaries. It transports nutrients to the cells and collects waste products. Most of the lymph returns to the venous capillaries; however about 10% enters the terminal lymphatic capillaries and returns to the blood through the lymphatic system. The fluid usually contains substances having large molecules (such as [[protein]]s and [[bacteria]]) that is too large for the venous capillaries.

The thoracic and right lymphatic ducts empty into the venous system near the collarbones. [[Lymph]] is continuously passing through the walls of the capillaries. It transports nutrients to the cells and collects waste products. Most of the lymph returns to the venous capillaries; however about 10% enters the terminal lymphatic capillaries and returns to the blood through the lymphatic system. The fluid usually contains substances having large molecules (such as [[protein]]s and [[bacteria]]) that is too large for the venous capillaries.

Along the lymphatic network in certain areas of the body ([[neck]], [[armpit]], [[groin]], [[abdomen]], [[chest]]) are small reservoirs, the lymph nodes, which collect [[bacteria]] and other deleterious agents and act as a barrier against these substances gettting into the bloodstream. In a diseased state the filled lymph nodes can become swollen or felt.  Enlarged lymph nodes can be a warning sign of various kinds of [[cancer]], including [[breast cancer]] and [[Hodgkin's disease]].

Along the lymphatic network in certain areas of the body ([[neck]], [[armpit]], [[groin]], [[abdomen]], [[chest]]) are small reservoirs, the lymph nodes, which collect bacteria and other deleterious agents and act as a barrier against these substances gettting into the bloodstream. In a diseased state the filled lymph nodes can become swollen or felt.  Enlarged lymph nodes can be a warning sign of various kinds of [[cancer]], including [[breast cancer]] and [[Hodgkin's disease]].

In cases where a cancerous growth has developed, removal of lymph nodes may help to prevent its further spread. However, such a procedure also slows the flow of lymph and may thus render some of the body vulnerable to infection.  Generally speaking when cancer reaches the lymph nodes, it can spread throughout the body rather quickly.

In cases where a cancerous growth has developed, removal of lymph nodes may help to prevent its further spread. However, such a procedure also slows the flow of lymph and may thus render some of the body vulnerable to infection.  Generally speaking when cancer reaches the lymph nodes, it can spread throughout the body rather quickly.