Author/Authors :
abdolmaleki, amir shahid beheshti university of medical sciences - school of medicine - department of anatomy and cell biology, تهران, ايران , mastery farahani, reza shahid beheshti university of medical sciences - school of medicine - department of anatomy and cell biology, تهران, ايران , ghoreishi, kamran university of qom - faculty of sciences - department of statistics, قم, ايران , shaerzadeh, fatemeh hormozgan university of medical sciences - faculty of medicine - department of physiology, ايران , aliaghaei, abbas shahid beheshti university of medical sciences - school of medicine - department of anatomy and cell biology, تهران, ايران , mirjavadi, hossein tehran university of medical sciences - advanced diagnostic and interventional radiology research center, ايران , abbaszadeh, hojjat-allah shahid beheshti university of medical sciences - school of medicine, hearing disorders research center - department of biology and anatomical sciences, تهران, ايران
Abstract :
introduction: interhemispheric transmission of signal is done by corpus callosum (cc) as the largest fiber tract in brain. cc comprised 5 segments of rostrum, genu, body, isthmus, and splenium. contradictory reports exist about sexual dimorphism of cc. we designed this study to assess probable sexual differences of cc and its different parts in men and women. methods: we analyzed magnetic resonance (mr) images of 68 females and 60 males in midsagittal view by pmsdviewer software. data were analyzed by student t test. these cases had no neurologic and pathologic diseases. results: mri anthropometric analysis indicates that all segments of cc are larger in men compared to women. moreover, our results also revealed that although all segments of cc were bigger in men, this increase in size was more prominent in the anterior segments of cc. conclusion: these findings indicate gender-related differences regarding cc segments. notably, brain size as an interfering variable was eliminated in this study.
