Foramen ovale:• [V3] Mandibular division   of [V] (trigeminal nerve)Jugular foramen:• [IX] Glossopharyngeal nerve• [X] Vagus nerve• [XI] Accessory nerve• Internal jugular veinForamen magnum:• Spinal cord• Vertebral arteries      Roots of accessory nerve [XI] pass from      upper region of spinal cord through the foramen      magnum into the cranial cavity and then leave       the cranial cavity through the jugular foramenForamen spinosum:• Middle meningeal arteryStylomastoid foramen:• [VII] Facial nerveCarotid canal:• Internal carotid arteryHypoglossal canal:• [XII] Hypoglossal nerveCribriform plate: (anterior cranial fossa/nasal cavity)• [I] Olfactory nerves Optic canal:(middle cranial fossa/orbit)• [II] Optic nerve• Ophthalmic arterySuperior orbital fissure:(middle cranial fossa/orbit)• [V1] Ophthalmic division   of [V] (trigeminal nerve)• [III] Oculomotor nerve• [IV] Trochlear nerve• [VI] Abducent nerve• Superior ophthalmic veinForamen rotundum:(middle cranial fossa/pterygopalatine fossa)• [V2] Maxillary division   of [V] (trigeminal nerve)Foramen ovale:(middle cranial fossa/infratemporal fossa)• [V3] Mandibular division   of [V] (trigeminal nerve)Foramen lacerum(filled with cartilage in life)Jugular foramen:(posterior cranial fossa/neck)• [IX] Glossopharyngeal nerve• [X] Vagus nerve• [XI] Accessory nerve• Internal jugular veinABForamen magnum:(posterior cranial fossa/neck)• Spinal cord• Vertebral arteries      Roots of accessory nerve [XI] pass from      upper region of spinal cord through the foramen      magnum into the cranial cavity and then leave       the cranial cavity through the jugular foramen Foramen spinosum:(middle cranial fossa/infratemporal fossa)• Middle meningeal arteryCarotid canal:(middle cranial fossa/neck)• Internal carotid arteryHypoglossal canal:(posterior cranial fossa/neck)• [XII] Hypoglossal nerveInternal acoustic meatus:(posterior cranial fossa/ear, and neckvia stylomastoid foramen)• [VII] Facial nerve• [VIII] Vestibulocochlear nerve       Labyrnthine artery and vein