Sympathetic projections to the epithalamus.
Injections of horseradish peroxidase were made into surgically exposed superior cervical ganglia of Sprague-Dawley rats weighing 250 to 320 g. Anterogradely labeled postganglionic fibers were observed in the nervus conarii, pineal gland, pineal stalk, and the choroid plexus. Terminal fields were identified in lamina intercalaris and the medial habenular nuclei. These findings support a previous study indicating that the sole innervation of the pineal gland is via the postganglionic sympathetics.
D000320:Adrenergic Fibers / Q000033:anatomy & histology*; D000818:Animals; D004027:Diencephalon / Q000033:anatomy & histology*; D005728:Ganglia, Sympathetic / Q000033:anatomy & histology*; D006735:Horseradish Peroxidase; D009434:Neural Pathways / Q000033:anatomy & histology; D051381:Rats; D011919:Rats, Inbred Strains; D018998:Wheat Germ Agglutinin-Horseradish Peroxidase Conjugate; D014909:Wheat Germ Agglutinins
D018998:Wheat Germ Agglutinin-Horseradish Peroxidase Conjugate; D014909:Wheat Germ Agglutinins; D006735:Horseradish Peroxidase