Anatomy General e2dd985e All except one is true regarding Suboccipital triangle A Semispinalis capitis forms roof of suboccipital triangle B Rectus capitis posterior major and minor form boundaries of suboccipital triangle C Posterior atlantooccipital membrane forms floor of the triangle D It contains 3rd part of vertebral artery High-Yield Explanation Rectus capitis posterior minor doesn’t form boundary of suboccipital triangle, even though it is seen in this region.