Skip to main content
. 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 15.

Figure 15

Three-dimensional reconstruction of several papillary collecting ducts (CDs) (aquaporin-2; blue), ascending thin limbs (ATLs) (chloride channel ClC K-1; green), and aquaporin- 1 (AQP1)-null descending thin limbs DTLs (αB-crystallin, yellow). Papillary surface epithelium is shown in grey. Tight narrow bends of loops of Henle (3 upper arrows) and wide transverse bends of loops of Henle (2 lower arrows) are shown. Wide transverse bends of two loops reaching to near the tip of the papilla almost completely encompass a final CD segment (blue) prior to its merging with the papillary wall (surface epithelium; translucent grey) to form a duct of Bellini. Relative diameters of loops and CDs in this image nearly approximate true dimensions. Scalebar, 200 μm. From Pannabecker and Dantzler (2007), used with permission.