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4. Lymphatic Vessels

Similar to the veins in the circulatory system, lymphatic vessels are the pathways of the lymphatic system. They consist of the lymph capillaries, the right lymphatic duct, and the thoracic duct. A clear liquid, interstitial fluid, forms in the heart and collects glucose, salt, fatty acids, healthy minerals, and waste products from the body. Around 90% of this fluid returns to the bloodstream. The lymph capillaries collect the rest of the interstitial fluid from the tissues, converting it into lymph. It is then passed through the ducts to the lymph nodes while collecting lymphocytes and proteins.

filter lymphatic system

krystiannawrocki / Getty Images

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This site offers information designed for educational purposes only. You should not rely on any information on this site as a substitute for professional medical advice, diagnosis, treatment, or as a substitute for, professional counseling care, advice, diagnosis, or treatment. If you have any concerns or questions about your health, you should always consult with a physician or other healthcare professional.