Fig. 7.

IMA morphology and density in the stomach were similar in wild-type and NT-4-deficient mice. A,B, Darkfield photomicrographs from the forestomachs in the region of peak circular IMA density of a wild-type (A) and an NT-4 mutant (B) mouse illustrate the similar densities of circular IMAs (labeled with WGA-HRP) that were observed in each group of mice. The IMAs are the largely rectilinear processes that sweep across the image (oriented horizontally and diagonally). A small number of sensory axon bundles and IGLEs are also present. Scale bars, 100 μm. C, Graph of circular IMA density in the stomach. There was no difference between NT-4 mutants and controls (unpaired t test;p = 0.66).