This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Stroke and TIA, Subject name: Medicine
[{'content': 'Hemiparesis is not seen with? \nSelect and explain. \nA. Posterior inferior cerebellar aery stroke, B. Middle cerebral aery stroke, C. Posterior cerebral aery stroke, D. Anterior spinal aery stroke', 'role': 'user'}, {'content': 'Answer: A \nExplanation: PICA supplies the lateral pa of the medulla and spares the coicospinal pathway. Hence no hemiparesis is seen. MCA occlusion will damage motor coex leading to hemiplegia. PCA occlusion will damage coicospinal pathway traveling midbrain. Coicospinal pathway traverses the medial pa of medulla which is supplied by the anterior spinal aery.', 'role': 'assistant'}]