Adrenergic and acetylcholinesterase-positive innervation of the bovine oviduct.

Adrenergic and cholinesterase-positive (AChE-positive) innervation of the bovine oviduct was studied using histochemical methods. Both subpopulations of the studied nerve fibres were found in the isthmus, ampulla and infundibulum where they were mainly related to the muscular coat or blood vessels of the organ. The adrenergic innervation was found to be much better developed than the cholinergic one. Adrenergic and cholinergic nerves were numerous in the isthmal port of the Fallopian tube, whereas these fibres were less numerous in the ampulla. The infundibulum contained the smallest number of adrenergic and ACHE-positive nerve fibres.