Ventral brainstem labelingOnline version label by Waleed Ahmed 1 CN II 2 optic tract 3 cerebral peduncle 4 Pons 5 olive 6 pyramid 7 medulla 8 pyramidal decussation 9 spinal cord 10 midbrain 11 CN III 12 CN IV 13 CN V 14 CN VII 15 CN VI 16 CN VIII 17 CN IX 18 CN X 19 CN XII 20 CN XI 21 ventral root C1 22 Pons }