part of part of Homo sapiens vertebral bone 1 bone foramen superior vertebral notch of first cervical vertebra 2026-03-19T00:00:00Z A bone foramen forming the superior indentation on the posterior aspect of the lateral mass of the atlas (C1), which when combined with the groove for the vertebral artery transmits the vertebral artery and the first cervical (suboccipital) nerve. David Osumi-Sutherland