This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Head and neck, Subject name: Surgery
[{'content': 'The &;Phenomenon of Kernohan&;s Notch&; is associated with: \nSelect and explain. \nA. Third nerve palsy with contalateral hemiplegia, B. Subfalcine herniation, C. Transtentorial herniation, D. Foramen magnum fracture', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Kernohan&;s Notch Phenomenon Kernohan&;s notch is a cerebral peduncle indentation associated with some forms of transtentorial herniation (uncal herniation) Compression of the contralateral cerebral peduncle against the free edge of the tentorium (Kernohan&;s notch) causes an ipsilateral hemiparesis with ipsilateral 3rd nerve palsy Ref: Harrison 19th edition Pgno: 1772', 'role': 'assistant'}]