The lymphatic system. What is and what do?
In: Biology
Your lymphatic system is part of your circulatory system along with your heart, veins, arteries and capillaries. It returns the fluid that leaks out of your blood vessels and baths all your cells in nutrients. It is a one way system of vessels with valves at most of your joints like knees, hips, elbows and armpits and neck called nodes that collect the lymph fluid and returns it to your blood stream near your heart. Your lymph system also plays a very important part in fighting off diseases. It supplies disease fighting cells and gives them a way to move through out your body. When you have infections these lymph nodes often swell and become hot and tender to the touch. Often when your have a sore throat you can feel the swelling in your neck. Doctors will often check for swelling to see if you have an infection or not.
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