light- and electron-microscopic investigation of the organization of adrenergic neuronal structures immunoreactive to phenylethanolamine-n-methyltransferase within this medullary nucleus further revealed : ( i ) that adrenergic axons establish profuse synaptic connections of the symmetrical type with perikarya and dendrites of this nucleus , and ( ii ) that several of these adrenergic fibers are connected with retrogradely labeled neurons innervating the stomach and/or pancreas .
C0011305
dendrites
C0027882
neurons