Cilium-like Structures Found by Electron Microscopy in the Glandular and the Small Ductal Lumina of the Toad Pancreas

Abstract

Cilium-like fibers with internal tubular structures were found in the glandular and in the intercalary duct lumina of the toad pancreas. In the present study it was revealed that they are extraordinary long cilia originating from the basal corpuscle found in the apical cytoplasm of the centroacinar and the intercalary duct cells. However, the ultrastructural pattern and the number of inner tubuli contained in the matrix of the fibers were not completely clarified in the present study.