Double Foramen Transversarium in Cervical Vertebra an Osteological Study

Abstract 50 sets of typical dried cervical vertebrae of human were studied for no. of foramen transversarium present on each transverse process of vertebra. So double foramen transversarium were detected unilaterally or bilaterally in 16 vertebrae out of 200 typical (C3-C6) cervical vertebrae. The variation of foramina appears to follow a pattern at various vertebral level.The course of vertebral artery may be distorted under such conditions. The normal factor responsible for such anomalies of foramen transversarium is developmental or related to the variation of course of vertebral artery.