title: Function and ultrastructure of the nephridium of Hirudo medicinalis L. II. Fine structure of the central canal and the urinary bladder.
mesh_terms: D001369:Axons / Q000648:ultrastructure; D001692:Biological Transport; D002462:Cell Membrane / Q000648:ultrastructure; D006056:Golgi Apparatus / Q000648:ultrastructure; D007865:Leeches; D008854:Microscopy, Electron; D008928:Mitochondria / Q000648:ultrastructure; D008954:Models, Biological; D001743:Urinary Bladder / Q000648:ultrastructure*; D014551:Urinary Tract / Q000648:ultrastructure*; D014553:Urinary Tract Physiological Phenomena