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. Author manuscript; available in PMC: 2013 Oct 25.
Published in final edited form as: Acta Physiol (Oxf). 2010 Dec 7;202(3):10.1111/j.1748-1716.2010.02214.x. doi: 10.1111/j.1748-1716.2010.02214.x

Figure 10.

Figure 10

Transverse section from near the base of the inner medulla (IM). (a) Inner medullary ascending vasa recta and capillaries (red) are symmetrically positioned around collecting ducts (CDs; blue) and make intimate contact with adjacent CDs. This relationship extends from the base of the IM to the tip of the papilla for most collecting ducts. Inner medullary urea transporter B-expressing descending vasa recta (green) tend to be distant from collecting ducts. (b) Diagrammatic representation of tubules and vessels to facilitate pattern analysis. Scalebar, 30 μm. From Pannabecker and Dantzler (2006), used with permission.