Abstract

An investigation was undertaken for the study of distribution, association and relation of islet cells with neural elements such as ganglia (large, medium and small in size), nerves of nerve cells, nerves of neural networks, coarse nerves, fine nerves, nerve bundles, nerves of blood vessels and pancreatic duct, with reference to ‘Neuro-Insular Complex’, in the pancreas of Lepus europaeus-Bulgarian Rabbit, as visualized by cholinesterase technique.
Formations of the ‘Neuro-Insular Complex’ in the vicinity of the ganglia (either lying on the periphery of islet cell or in the vicinity of islet cell- this is one type of complex) and in the vicinity of nerve cell, lying on the periphery of the islet cell-this is another type of complex, were recorded. In addition to this, so many other types of the neuro-insular complexes, were recorded which have been described and discussed.
Islet cells of different shapes (rounded, oval and irregular) and sizes (small, medium and large), were recorded in the vicinity of the blood vessels, pancreatic duct and their ductules and in the endocrine region of the pancreas. The nerves of the islet cells formed the envelope-like structure on each islet cell, in different forms. At times, the nerves of these islet cells were in close relation and associations with the nerves of the neural networks and plexuses either of the blood vessels or the pancreatic duct. These associations and relations among the islet cells and neural elements may also be termed as ‘Neuro- Insular complexes’.