Fig. 1
From: Zebrafish: an efficient vertebrate model for understanding role of gut microbiota
Abdominal anatomy of intestinal tracts between humans A and adult zebrafish (B). Epithelial cells are specified as either secretory or enterocytes as they migrate up the villi in mammals or folds in zebrafish. The mature zebrafish intestine has three segments: anterior intestinal bulb (blue), middle intestine (orange), and posterior intestine (green). Mature epithelial cells include enterocyte, enteroendocrine, and goblet cells. Compared with the human intestine, crypts, Paneth cells, and M-cells are absent in the zebrafish intestine