The inner area of the renal medulla contains three types of structures. In the first place, collecting ducts, which will gradually converge as they go deeper into the medulla, increasing their diameter and decreasing their number. The second element is the long loops of Henle, the only element of the nephron present in this zone. And finally, blood vessels, the vasa recta, which are arranged

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拍攝者： Jlcalvo