title: Nerve fibers in the sympathetic trunk of Rana pipiens: a quantitative electron microscope study.
mesh_terms: D000818:Animals; D001369:Axons; D005725:Ganglia, Autonomic / Q000166:cytology; D008854:Microscopy, Electron; D009413:Nerve Fibers, Myelinated / Q000166:cytology; D011894:Rana pipiens / Q000033:anatomy & histology*; D013153:Splanchnic Nerves / Q000166:cytology; D013564:Sympathetic Nervous System / Q000166:cytology*