Lymph vessel

Lymph vessel

The lymph vessel or lymphatic vessel is a part of the lymphatic system in vertebrates that is responsible for the transportation of lymph between different parts of the body. The lymphatic system is a network of tissues and organs that help rid the body of toxins, waste and other unwanted materials. The primary function of the lymphatic system is to transport lymph, a fluid containing infection-fighting white blood cells, throughout the body.

Structure

Lymph vessels are similar to blood vessels, but they carry lymph instead of blood. The smallest lymph vessels are the lymph capillaries, which are located in the spaces between cells. These capillaries merge to form larger vessels that carry the lymph to the lymph nodes, where it is filtered.

Function

The main function of the lymph vessels is to conduct lymph from the tissues to the lymph nodes. This lymph contains white blood cells, which are important for the body's immune system. The lymph vessels also play a role in the absorption of fats and fat-soluble vitamins from the diet, and in the return of excess fluid to the blood circulation.

Clinical significance

Diseases of the lymph vessels are less common than diseases of the blood vessels, but they can be serious. They include lymphedema, which is swelling caused by a blockage of the lymph vessels, and lymphangitis, which is inflammation of the lymph vessels. These conditions can be caused by infection, injury, cancer, or surgery.

See also

• Lymphatic system
• Lymph node
• Lymph
• Lymphedema
• Lymphangitis

References

Lymph vessel Resources
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