<prompt> Which of the following passes through the foramen magnum -Vertebral ArterySympathetic chainXIth cranial nerveInternal carotid Artery  <response>: 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. 