Rami communicantes of the pelvic segment of the sympathetic trunk in human fetuses.
D001338:Autonomic Fibers, Postganglionic / Q000033:anatomy & histology*; D005260:Female; D005728:Ganglia, Sympathetic / Q000166:cytology* / Q000196:embryology; D006801:Humans; D008161:Lumbosacral Region; D008297:Male; D012737:Sex Factors; D013564:Sympathetic Nervous System / Q000196:embryology*