[GABA-immunoreactive structures in the stellate and superior cervical ganglia of the cat]

GABA-immunoreactive point structures and fibers were found in the cat stellate and superior cervical ganglia, their diameter varying from 0.5 to 5.0 mcm. GABA-immunoreactive cells were only found in the stellate ganglion. Character of these cells as well the origin of the GABA-immunoreactive fibers, are discussed.