Fig. 29-6. Arterial segments of right kidney. The left is similar. (After Fourman and Moffat.) Interpretation of the posterior segment as two units (upper dorsal and lower dorsal) would provide a total of six arterial segments. The relationship between these and the four to nineteen lobes of the kidney has been examined in detail by Inke (in Vidrio, E. A., and Galina, M. A., eds., Advances in the Morphology of Cells and Tissues, Liss, New York, 1981, pp. 71-78). Click for high resolution image.