Along with its 1,100 tributaries and other smaller watercourses, the Amazon forms a complex communications network that could be likened to the circulatory system of the human body, of which the Amazon compares to the aorta, the body’s largest artery.
Amazonas moodustab oma 1100 lisajõe ja väiksemate voolusängidega jõgikonna, mida võiks võrrelda inimkeha vereringesüsteemiga, nii et Amazonas kujutaks keha suurimat arterit – aorti.