Cerebellar peduncles Posterolateral view Thalamus (cut surface) Lateral geniculate body Pulvinars of thalami Optic tract Pineal body Medial geniculate body Superior colliculi- -Brachia of superior and inferior colliculi Inferior colliculi- Cerebral crus Trochlear nerve(IV)- -Pons Superior medullary velum -Trigeminal nerve(V) Superior cerebellar peduncle Middle cerebellar peduncle Rhomboid fossa of 4th ventricle- -Vestibulocochlear nerve(VIll) Glossopharyngeal(IX)and -Facial nerve (VIl) vagus(X)nerves- Inferior cerebellar peduncle Cuneate tubercle Hypoglossal nerve(XIl) Gracile tubercle Accessory nerve(XI) Dorsal roots of 1st spinal nerve(C1)- Cuneate fasciculus- Gracile fasciculus Cerebellar peduncles