What waste is included in deoxygenated blood , when studying lymphatic system we say that 17 liters of waste from the cells goes back to blood stream in veins, and the remaining 3 liters of waste is carried by lymphatic system. The lymphatic system takes it back to the blood stream. So,what waste is that? veins will carry blood to heart via vena cevae but what is heart gonna do with it? it can only remove carbondioxide in it by sending it to lungs!
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Answer:
Some 20 liters of plasma flow through your body’s arteries and smaller arteriole blood vessels and capillaries every day. After delivering nutrients to the body’s cells and tissues and receiving their waste products, about 17 liters are returned to the circulation by way of veins. The remaining three liters seep through the capillaries and into your body’s tissues. The lymphatic system collects this excess fluid, now called lymph, from tissues in your body and moves it along until it ultimately returns it to your bloodstream.
Your lymphatic system actually has many functions. Its key functions include:
Maintains fluid levels in your body: As just described, the lymphatic system collects excess fluid that drains from cells and tissue throughout the body and returns it to the bloodstream, which is then recirculated through the body.
Absorbs fats from the digestive tract: Lymph includes fluids from the intestines that contain fats and proteins and transports it back to the bloodstream.
Protects your body against foreign invaders: The lymphatic system is part of the immune system. It produces and releases lymphocytes (white blood cells) and other immune cells that monitor and then destroy the foreign invaders — such as bacteria, viruses, parasites and fungi — that enter the body.
Transports and removes waste products and abnormal cells from the lymph.