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. Author manuscript; available in PMC: 2014 Jan 27.
Published in final edited form as: J Comp Neurol. 2011 Mar 1;519(4):644–660. doi: 10.1002/cne.22541

Figure 1.

Figure 1

A vagal villus afferent innervating a duodenal villus. A: A neurite of a villus afferent coursing through the submucosa and between intestinal crypts (lower right of panel) and then projecting to the apex of a villus (seen in transverse profile) to ramify in the apical half of the villus into a terminal plate (seen in side profile) at the basal side of the epithelial wall. B: A higher-power view of the apical terminal plate produced by the villus afferent seen in panel A. C: A higher-power view of terminal processes that the villus afferent in panel A distributes just deep to the basal pole of the epithelial wall of the villus. D: A higher-power view (area designated by arrow in panel A) of the trajectory of the villus afferent as it enters the tissue section (from left), courses near but without any tight apposition to the basal pole of crypt, and then reverses course and begins to ascend between two crypts (also labeled in panel A) on a path into the villus. c, crypt. Scale bars = 50 µm in A; 10 µm in B–D.