The verification of neurones in the pancreas of spiny mice (Acomys cahirinus).

The statement that up to now no neural elements could be identified in the islets of Langerhans with the aid of electron microscopy led us to reinvestigate this question of innervation of the pancreas in spiny mice using light microscopy. Single nerve cells as well as nerve fibre bundles could be found in the interlobular connective tissue of the pancreas. By constrast, we could observe neither nerve cells nor nerve fibres in the islets of Langerhans. Extrainsular neuroinsular complexes could not be found either.