title: Observations on the fine structure of spermatozoa in the testis and excurrent ducts of the male fowl, Gallus domesticus.
mesh_terms: D000818:Animals; D002454:Cell Differentiation; D002462:Cell Membrane; D002467:Cell Nucleus; D002645:Chickens / Q000033:anatomy & histology*; D002843:Chromatin; D004822:Epididymis; D008297:Male; D008854:Microscopy, Electron; D008870:Microtubules; D008928:Mitochondria; D013094:Spermatozoa / Q000166:cytology*; D013737:Testis / Q000166:cytology*; D014649:Vas Deferens
chemical_list: D002843:Chromatin