This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Brain , Subject name: Anatomy
Cerebellopontine angle contains all except 
Select and explain. 
A. VII N, B. VIII N, C. Medullo-olivary tract, D. XII N
D: XII N
Answer: D: XII N 
Explanation: Cranial nerve XII arises from the lower pa of medulla. The cerebellopontine angle is a triangular subarachnoid space that lies between the anterior surface of the cerebellum and the lateral surface of the pons. It contains CSF, arachnoid tissue, cranial nerves, and associated vessels. Contents : Facial nerve (CN VII) Vestibulocochlear nerve (CN VIII) Flocculus of the cerebellum Lateral recess of the 4th ventricle Anterior Inferior cerebellar aery. Relations: CN V lies superior to this space CN IX, CN X, and CN XI lie inferior to this space, cerebellar peduncle also. ref - vishram singh 2e pg82