[Choline acetyltransferase in the neural plexus of the main artery of cat's brain].

Methods of Burt (1961, 1970) and Kása (1970) were used in order to study localization of choline acetyltransferase (ChAT 2.3.1.6) and method of Koelle to study the activity of acetylcholinesterase (AChE 3.1.1.7) in nerve plexuses of the cat's brain major artery. It has been established that ChAT is detected mainly in preterminal and terminal fibres of the plexus while AChE is detected along the total length of the fibre. The activity of AChE is higher than that of ChAT.