nad a22 4500 555301222 20190206082733.0 cr unu---uuuuu 190206e20190101xx s 000 0 eng 10.5167/uzh-161764 doi 10.1016/j.heliyon.2018.e01086 doi (ZORA)oai:www.zora.uzh.ch:161764 610 ddc 30671556 pmid Asymmetries of total arterial supply of cerebral hemispheres do not exist [Elektronische Daten] [Arjun Burlakoti, Jaliya Kumaratilake, Jamie Taylor, Maciej Henneberg] openAccess eu-repo Background: Total blood supply to an organ, or its part, is proportional to its function. The aim of this project was to investigate whether there is a lateralisation of total functions of cerebral hemispheres by determining differences in the arterial blood supply to left and right cerebral hemispheres. Methods: Diameters of right and left anterior, middle and posterior cerebral arteries were measured at specific sites and cross-sectional areas calculated in 203 adult brains (51 donated and dissected brain specimens and 152 cerebral arterial Computed Tomography Angiography and Magnetic Resonance Angiography images). Findings: The sample size was large enough to provide a power of detecting as significant differences of 4%, but neither of the average cross-sectional areas of right anterior, middle and posterior cerebral arteries were significantly different from those of the anterior, middle and posterior cerebral arteries of the left side. Furthermore, combined areas of the three right cerebral arteries were not significantly different from combined areas of the left three arteries. This clearly indicates that the blood supply into the right cerebral hemisphere is not different from that of the left cerebral hemisphere. Therefore, there is no total functional lateralisation between the two cerebral hemispheres. Conclusion: Brain lateralisation, frequently discussed in the literature, does not deferentially influence the total activity levels of cerebral hemispheres. KEYWORDS: Anatomy; Neuroscience Institute of Evolutionary Medicine zora Burlakoti Arjun joint author Kumaratilake Jaliya joint author Taylor Jamie joint author Henneberg Maciej joint author Heliyon 5(1):e01086 https://www.zora.uzh.ch/id/eprint/161764/1/2019_Heliyon_Asymmetries.pdf text/html WWW-Backlink auf das Repository 1 Journal Article PeerReviewed zora ZORA 856 40 https://www.zora.uzh.ch/id/eprint/161764/1/2019_Heliyon_Asymmetries.pdf text/html WWW-Backlink auf das Repository ZORA 700 1- Burlakoti Arjun joint author ZORA 700 1- Kumaratilake Jaliya joint author ZORA 700 1- Taylor Jamie joint author ZORA 700 1- Henneberg Maciej joint author ZORA 773 0- Heliyon 5(1):e01086 BK010053 XK010053 XK010000 ZORA ZORA ZORA Journal Article openAccess