This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anatomy
[{'content': 'Each lateral ventricle opens into the 3rd ventricle through \nSelect and explain. \nA. Foramen of Monro, B. Lateral foramen, C. Foramen of luschka, D. Foramen of magendi', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Cavities within brain and spinal cord:\na) The cerebrum contains a median cavity, the third ventricle and two lateral ventricles, one in each hemisphere.\nb) Each lateral ventricle opens into the 3rd ventricle through interventricular foramen or foramen of \xa0monro.\nc) The third ventricle opens into the 4th ventricle \xa0(i.e., cavity of hind brain) through the cerebral aqueduct.\nd) The 4th ventricle communicates with subarachnoid space through two lateral foramen or foramen of luschka and a medial foramen or foramen of magendi.', 'role': 'assistant'}]