title: "Secretory end-feet"--axon terminals of unusual cytological character and probable neuroglandular significance in Nereis (Polychaeta; Annelida).
mesh_terms: D000818:Animals; D000845:Annelida / Q000648:ultrastructure*; D001369:Axons / Q000648:ultrastructure*; D001921:Brain / Q000648:ultrastructure; D006651:Histocytochemistry; D002479:Inclusion Bodies / Q000648:ultrastructure; D008854:Microscopy, Electron; D008928:Mitochondria / Q000648:ultrastructure; D009489:Neurosecretion; D013057:Spectrum Analysis