subpopulations of neurons in colchicine-treated major pelvic ganglia and accessory ganglia of male rats contained immunoreactivity ( ir ) for tyrosine hydroxylase ( th ) , vasoactive intestinal peptide ( vip ) , neuropeptide y ( npy ) , or enkephalin ( enk ) , while types of immunoreactivity found in major groups of varicose axons were enk , cholecystokinin ( cck ) , and somatostatin ( som ) .
C0027882
neurons
C0004461
axons