title: Spinal origin of preganglionic fibers projecting onto the superior cervical ganglion and inferior mesenteric ganglion of the guinea pig, as demonstrated by the horseradish peroxidase technique.
mesh_terms: D000818:Animals; D001339:Autonomic Fibers, Preganglionic / Q000033:anatomy & histology*; D007839:Functional Laterality / Q000502:physiology; D005725:Ganglia, Autonomic / Q000033:anatomy & histology*; D006168:Guinea Pigs; D006735:Horseradish Peroxidase; D008297:Male; D008643:Mesentery / Q000294:innervation*; D009474:Neurons / Q000648:ultrastructure; D013116:Spinal Cord / Q000033:anatomy & histology*
chemical_list: D006735:Horseradish Peroxidase