Basal forebrain projections to the lower brain stem in the rat.
The projections of the magnocellular nuclei of the basal forebrain to the lower brain stem were studied using the WGA-HRP method. Of these nuclei, the nucleus of the vertical and the nucleus of the horizontal limb of the diagonal band of Broca, the magnocellular preoptic nucleus, and the substantia innominata were found to project bilaterally to the caudal midbrain, pons, and medulla. Labeled cells in the medial septal nucleus and in the nucleus basalis were found ipsilaterally only when injections stained the caudal part of the interpeduncular nucleus. The present findings together with other recent reports reveal a more extensive distribution of basal forebrain efferents than was previously thought.
Dinopoulos
A
A
Department of Anatomy, School of Veterinary Medicine, University of Thessaloniki, Greece.
Papadopoulos
G C
GC
Parnavelas
J G
JG
Antonopoulos
J
J
Karamanlidis
A N
AN
D000818:Animals; D001370:Axonal Transport; D001921:Brain / Q000033:anatomy & histology*; D001933:Brain Stem / Q000033:anatomy & histology*; D004525:Efferent Pathways / Q000033:anatomy & histology*; D006735:Horseradish Peroxidase; D011149:Pons / Q000033:anatomy & histology; D051381:Rats; D011919:Rats, Inbred Strains / Q000033:anatomy & histology*; 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