Vasović Ljiljana, Mojsilović Marijola, Andelković Zlatibor, Jovanović Ivan, Arsić Stojanka, Vlajković Slobodan, Milenković Zoran
Department of Anatomy, Faculty of Medicine, University of Nis, Blvd. Dr Zoran Dindić 81, 18000, Nis, Serbia.
Childs Nerv Syst. 2009 Apr;25(4):411-21. doi: 10.1007/s00381-008-0765-7. Epub 2009 Feb 11.
Primitive carotid-vertebral and carotid-basilar anastomoses are formed early during human embryogenesis at approximately 24 days. From cephalic to caudal direction, these anastomoses are cranial extensions of the primitive internal carotid, trigeminal, otic, hypoglossal and proatlantal intersegmental arteries.
Normal and/or abnormal morphofunctional aspects of prenatal and postnatal forms of the proatlantal intersegmental artery, from the 24th day of gestation to postnatal eight decades, are described according to personal and literature data. Many (ab) normal carotid-vertebral anastomoses are also marked in differential diagnosis of the proatlantal intersegmental artery.
The proatlantal intersegmental artery maintains the posterior circulation until the vertebral arteries are fully developed between the seventh and eighth gestational weeks. When this artery fails to obliterate, it becomes persistent one. The proatlantal intersegmental artery, most commonly, is an incidental finding or it may be of clinical significance in some patients.
原始颈-椎和颈-基底吻合在人类胚胎发育早期约24天时形成。从头部向尾部方向，这些吻合是原始颈内动脉、三叉神经、耳、舌下和前寰椎节段间动脉的颅部延伸。
根据个人及文献资料，描述了从妊娠第24天到出生后八十岁期间前寰椎节段间动脉产前和产后形式的正常和/或异常形态功能方面。在鉴别诊断前寰椎节段间动脉时，还标记了许多（异常）正常的颈-椎吻合。
前寰椎节段间动脉维持后循环，直至椎动脉在妊娠第7至8周完全发育。当该动脉未能闭塞时，它会持续存在。前寰椎节段间动脉最常见的是偶然发现，或者在某些患者中可能具有临床意义。
