Fig. 3
From: An anatomical study of arcuate foramen and its clinical implications: a case report
Schematic drawing corresponding to Figs. 1 and 2 showing the dimension measurements associated with the dorsal arch of the atlas: D 1 = 2.5 mm, D 4 = 3.8 mm, D 7 = 5 mm, D 10 = 18 mm, D 2 = 7.5 mm, D 5 = 10 mm, D 8 = 13 mm, D 11 = 85 mm, D 3 = 14 mm, D 6 = 5 mm, D 9 = 6 mm. LDPP = Left dorsal ponticulus posticus; LLPP = Left lateral ponsiculus posticus; RDPP = Right dorsal ponticulus posticus; RLPP = Right lateral ponticulus posticus; DAT = Dorsal arch of atlas; DTA = Dorsal tubercle of atlas; VAG = Vertebral artery groove; VA = Vertebral artery