What are Lymph Nodes?
Reviewed: Dr. Gromatzky
4. Similarities Between the Lymphatic System and the Blood Circulatory System
The lymphatic system has both similarities and differences from the blood circulatory system. Both are a network of different sizes of vessels spread throughout the body.
The smallest vessels in each case are lymph capillaries and blood capillaries, respectively. Lymph vessels are similar to veins in that they drain fluid and blood from tissues, respectively, and have a series of valves to allow for one-direction flow.
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