Capillaries flow into very small veins that usually merge with larger and larger veins until finally reaching the heart. In a few cases, capillaries flow into a small vein that travels a short distance and then branches into a second group of capillaries. This is called a portal system. Which of the following circulatory structures is comparable to a portal system?

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    circulation between the glomerulus and the capillaries that surround the loop of Henle
    circulation between the small intestine and the kidneys
    circulation between the liver and the gallbladder
    circulation between the heart and the lungs
asked May 19, 2013 in Biology by anonymous
    

1 Answer

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circulation between the glomerulus and the capillaries that surround the loop of Henle
answered May 20, 2013 by Bioshare ~Top Expert~ (34,070 points)

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