| | pore; spinal canal, vertebral canal, canalis vertebralis; ductule, ductulus; canaliculus; canal of Schlemm, Schlemm's canal, sinus venosus sclerae; venous sinus, sinus; lacrimal duct, lachrymal duct, tear duct; nasolacrimal duct; Haversian canal; hepatic duct; inguinal canal, canalis inguinalis; common bile duct, bile duct; pancreatic duct; lymph vessel, lymphatic vessel; salivary duct; cerebral aqueduct, Sylvian aqueduct, aqueductus cerebri; ureter; urethra; cervical canal, canalis cervicis uteri; umbilical cord; vagina; epididymis; vas deferens, ductus deferens; seminal duct; ejaculatory duct; cartilaginous tube; bronchiole; alimentary canal, alimentary tract, digestive tube, digestive tract, gastrointestinal tract, GI tract; lactiferous duct |