This arrangement permits fluid to enter the capillary but prevents lymph from leaving the vessel. The microscopic lymph capillaries merge to form lymphatic vessels. Small lymphatic vessels join to form larger tributaries, called lymphatic trunks , which drain large regions. Lymphatic trunks merge until the lymph enters the two lymphatic ducts.
The right lymphatic duct drains lymph from the upper right quadrant of the body. Lymphomas are cancers of a specific type of white blood cells known as lymphocytes. Cancers in lymph nodes can interfere with the flow of lymphatic fluid through the node. Cancers in other areas can block lymphatic ducts.
Lymphangiosarcoma is a very rare tumor that may develop in cells of the lymphatic system. Merck and Co. From developing new therapies that treat and prevent disease to helping people in need, we are committed to improving health and well-being around the world.
The Manual was first published in as a service to the community. Learn more about our commitment to Global Medical Knowledge. This site complies with the HONcode standard for trustworthy health information: verify here. Common Health Topics. Disorders of the lymphatic system. Lymphatic Disorders. Test your knowledge. An aortic dissection occurs when the inner layer lining of the aortic wall tears and separates from the middle layer of the wall.
They usually cannot be seen or easily felt. They are located in clusters in various parts of the body, such as the:. Lymph nodes make immune cells that help the body fight infection. They also filter the lymph fluid and remove foreign material such as bacteria and cancer cells.
When bacteria are recognized in the lymph fluid, the lymph nodes make more infection-fighting white blood cells. This causes the nodes to swell. Information about a therapy, service, product or treatment does not in any way endorse or support such therapy, service, product or treatment and is not intended to replace advice from your doctor or other registered health professional.
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The State of Victoria and the Department of Health shall not bear any liability for reliance by any user on the materials contained on this website. Skip to main content. Immune system. Home Immune system. Lymphatic system. Actions for this page Listen Print. Summary Read the full fact sheet. On this page. The lymphatic system and fluid balance Lymphatic vessels Spleen Thymus Other lymphoid tissue Lymph nodes Common problems involving the lymphatic system Where to get help.
The main roles of the lymphatic system include: managing the fluid levels in the body reacting to bacteria dealing with cancer cells dealing with cell products that otherwise would result in disease or disorders absorbing some of the fats in our diet from the intestine. The lymphatic system and fluid balance The blood in our blood vessels is under constant pressure. Lymphatic vessels The lymphatic vessels are found everywhere in our body. Spleen The spleen is located in the abdominal tummy area on the left side, just under the diaphragm.
Thymus The thymus is inside the ribcage, just behind the breastbone. Other lymphoid tissue Much of our digestive and respiratory system is lined with lymphatic tissue. Lymph nodes Lymph nodes are filters.
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