Pretterklieber M L, Schindler A, Krammer E B
Department 2, University of Vienna, Austria.
Acta Anat (Basel). 1994;149(4):300-5. doi: 10.1159/000147591.
The left ophthalmic artery (OA) of a Caucasian male originated from the transverse portion of the cavernous part of the internal carotid artery (ICA), indicating the persistence of a dorsal OA. It entered the orbit through the most medial part of the superior orbital fissure, close to the medial aspect of the ophthalmic nerve. In the orbital cavity, the OA crossed above the optic nerve to reach the medial wall of the orbit. At the medial end of the upper eyelid it anastomosed with the angular artery and thereafter divided into the dorsal nasal and supratrochlear arteries. Whereas the right OA did not present any irregularities, some additional anatomical variations, above all a bilateral pterygospinosus muscle, were found in this individual. Since except the existence neither the course and branching pattern of a persistent dorsal OA nor its occurrence together with other varieties have been previously reported in man, phylogenetic and ontogenetic aspects of this aberrant vessel are discussed.
一名高加索男性的左眼动脉（OA）起源于颈内动脉（ICA）海绵窦段的横部，提示存在背侧眼动脉。它通过眶上裂最内侧部分进入眼眶，靠近眼神经内侧。在眼眶内，眼动脉在视神经上方交叉到达眶内侧壁。在上睑内侧端，它与内眦动脉吻合，然后分为鼻背动脉和滑车上动脉。而右眼动脉未见任何异常，但在该个体中发现了一些额外的解剖变异，尤其是双侧翼棘肌。由于此前在人类中尚未报道过持续存在的背侧眼动脉的走行、分支模式及其与其他变异同时出现的情况，因此本文讨论了这种异常血管的系统发育和个体发育方面的问题。
