title: Quantitative evaluation of the number of fibers in the right and left fasciculus retroflexus using horseradish peroxidase.
abstract: A quantitative evaluation of the number of fibers in the right and left fasciculus retroflexus (FR) was conducted in the frog Rana esculenta after injections of horseradish peroxidase (HRP) in the habenular nuclei of the two sides of the brain and in the interpeduncular area in separate animals. It seems that the known morphological asymmetry of the habenular nuclei is not accompanied by a corresponding asymmetry of the FR and that there is an equivalent number of fibers in the FR after HRP injections in either the habenulae or the interpeduncular area.
mesh_terms: D000818:Animals; D001921:Brain / Q000033:anatomy & histology*; D006735:Horseradish Peroxidase; D010544:Peroxidases; D011893:Rana esculenta / Q000033:anatomy & histology*
chemical_list: D006735:Horseradish Peroxidase; D010544:Peroxidases