Cavdar S, Dalçik H, Ercan F, Arbak S, Arifoğlu Y
Marmara University, Faculty of Medicine, Department of Anatomy, Istanbul Turkey.
Okajimas Folia Anat Jpn. 1996 Aug;73(2-3):133-7. doi: 10.2535/ofaj1936.73.2-3_133.
Morphometric investigations on the V2 segment of the vertebral artery, showed that, it did not have a constant calibre during its course within the foramina transversaria. The vertebral artery, entering the foramina transversaria reduced its calibre and further continued to reduce until C3 level, above C3 it began to reincrease its calibre and at C1 level reached its largest calibre. Measurements on the muscular thickness, showed an increase as ascending through the foramina transversaria. The widening and narrowing of the vertebral artery within the foramina transversaria was attributed as tortious artery or congenital anomaly. This study showed that it was the normal anatomy of the artery within the foramina transversaria.
对椎动脉V2段的形态学研究表明，它在横突孔内走行过程中管径并非恒定。进入横突孔的椎动脉管径变细，并持续变细直至C3水平，在C3以上开始再次增粗，在C1水平达到最大管径。对肌肉厚度的测量显示，随着向上穿过横突孔而增厚。椎动脉在横突孔内的增粗和变细被归因于动脉迂曲或先天性异常。本研究表明，这是椎动脉在横突孔内的正常解剖结构。
