Which of the following passes through the foramen magnum -

Structures passing through foramen magnum are : Anterior part:- Apical ligament of dens, membrane tectoria, vertical band of the cruciate ligament. Posterior part:- the Lowest part of the medulla oblongata, three meninges (dura, arachnoid and pia mater). Subarachnoid space:- Spinal accessory nerves, vertebral artery and sympathetic plexus around it, posterior spinal arteries, anterior spinal arteries.