Neurohistological observations on lung of female Perdicula asiatica (jungle bush quail) as revealed by cholinesterase technique.

Myelinated and non-myelinated nerve fibres follow the bronchi which share in the formation of the pericartilaginous plexus, posteriorly. Meso- and parabronchi were richely innervated by a large number of non-myelinated nerve fibres. Rounded ganglia (large and small) were observed near the wall of the bronchi and parabronchi. Large ganglia with numerous nerve cells were observed in the parenchymal tissue. Occasionally ganglia were seen in between parabronchial space and in the connective tissue space. Muscle were also richly innervated by non-myelinated nerve fibres and were marked in close associationship with the pre- and postganglionic nerve fibres of the perimuscular ganglia. The neural networks, formed by fine branches of non-myelinated nerve fibres, were either connected with the vascular (arterial) plexuses, neural terminal network, fibres of the pericartilaginous plexus or meso- and parabronchial plexus.