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Lateral điểm của phía bên trái của các cấu trúc nhấn mạnh thân não và dây thần kinh sọ trên khía cạnh bụng của đồi não và Trước não động mạch | 2Ó External Morphology of the Central Nervous System Lateral geniculate body Crus cerebri Trochlear nerve Optic tract Optic chiasm Optic nerve Infundibulum Trigeminal nerve motor root Trigeminal nerve sensory root Facial nerve Olive inferior olivary eminence Middle cerebellar peduncle Vestibulocochlear nerve Retroolivary sulcus postolivary sulcus Preolivary sulcus Basilar pons Abducens nerve Pyramid 2-22 Lateral view of the left side of the brainstem emphasizing structures and cranial nerves on the ventral aspect of the thalamus and brainstem. Compare with Figure 2-24 on the facing page. The bellum and portions of the temporal lobe have been removed. cere- Anterior cerebral artery Optic nerve Optic chiasm Optic tract Posterior perforated substance Trochlear nerve Lateral geniculate body Medial geniculate body Middle cerebellar peduncle Vestibulocochlear nerve Olfactory tract Medial olfactory stria Lateral olfactory stria Anterior perforated substance Infundibulum Mammillary body Crus cerebri Basilar pons Trigeminal nerve Abducens nerve Facial nerve Pyramid 2-23 View of the ventral aspect of the diencephalon and part of the Note structures of the hypothalamus cranial nerves and optic struc- brainstem with the medial portions of the temporal lobe removed. tures including the lateral geniculate body. The Brain Gross Views Vasculature and MRI 27 Oculomotor nerve------- Superior cerebellar artery Fornix Optic tract Thalamogeniculate artery Posterior cerebral artery Mammillary body Quadrigeminal artery Internal carotid artery Posterior communicating artery Trigeminal nerve Motor root Sensory root Choroid plexus third ventricle Posterior choroidal arteries Lateral geniculate body Dorsal thalamus Medial geniculate body Superior colliculus Crus cerebri Brachium of inferior colliculus Inferior colliculus Trochlear nerve Glossopharyngeal nerve fourth ventricle Restiform body Accessory nerve Cuneate tubercle Gracile tubercle Posterior inferior cerebellar artery Posterior .
