... veins 85 optic canal 82 , 85 optic chiasm 73, 74, 85 optic (second) cranial nerve 71, 82 , 83 , 84 , 85 optic pathways 85 oral cavity 96orbitbony 81 –2cavity 81 –2infections 82 lacrimal gland 84 nerves ... 119–20, 1 58 epiphyseal 1 58 ostiomeatal complex 94, 95, 96oval window 86 , 87 , 89 ovarian artery 57, 58 ovaries 58 9pampiniform plexus 58 pancreas 44pancreatic duct 44pancreatica magna 44para-aortic ... cap 38 duodenocolic ligament 45duodenum 38 9pancreatic duct opening 44duplex scan 7testis 56dura mater 76, 111–12dural venous sinuses 77, 79ear 86 –90external 86 inner 88 –9middle 86 8 echo-planar...