[The monoaminergic innervation of the mediastinal pleura in human fetuses].

Mediastinal pleura was studied in pregnancy second part abortive human fetuses using histological and histochemical technique. It was found to have a well-developed monoaminergic apparatus that includes adrenergic axons and mast cells. Electron microscope study confirmed monoaminergic and single peptidergic vesicles presence in axons. Luminescent method revealed that mast cells of nerve plexuses and blood vessels contain catecholamines and indolalkylamines. Monoaminergic axons and mast cells were shown to constitute a functionally integrative apparatus that regulates local hemodynamics and trophics.