CT/MRI cranial nerves and vessels
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| This is a mixed sensory and motor nerve | Vagus Nerve
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| Blood is supplied to the brain by two pairs of arteries, what are they? | carotids and vertebrals
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| These arteries supply blood to the frontal, temporal and parietal lobes | carotids
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| These arteries supply blood to the posterior circulation of the brain | vertebrals
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| supply blood to the frontal lobe/medial aspect of parietal lobe | anterior cerebrals
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| connects the anterior cerebral arteries | anterior communicating artery
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| This artery is the direct continuation of the internal carotids, supplies blood to temporal and parietal lobes | middle cerebral artery
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| This forms a connections between the internal carotids and the posterior cerebral arteries | posterior communicating artery
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| Composed of the internal carotids, anterior and posterior communicating arteries and the anterior, medial and posterior cerebral arteries | Circle of Willis
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| Venous channels that drain the blood from the brain and meninges | dural venous sinuses
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| Lies along the medial plane, drains blood from the upper cerebral hemispheres | superior sagittal sinus
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| found just superior to the corpus callosum, converges with vein of galen to form straight sinus, receives blood from the deep and medial aspects of the cerebral hemispheres | inferior sagittal sinus
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| great cerebral vein | Vein of Galen
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| receives blood from inferior sagittal sinus and vein of galen and empties into confluence | Straight sinus
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| point of convergence of the superior, sagittal, straight, occipital and transverse sinuses | confluence of sinuses
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| extend laterally on each side of cerebrum, right generally larger, drains blood from confluence and petrous portions of the temporal bone | transverse sinus
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| follows an S shaped pattern, drains into jugular vein | Sigmoid sinus
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| Rounded, berrylike outpouchings that arise from arterial bifurcation points, most common in the circle of Willis | sacular aneurysm
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| when a blood clot forms in the brains venous sinuses, prevents blood from draining out of the brain | venous sinus occlusion
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| form of short limbed dwarfism | achrondoplasia
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| Chronic and progressive condition of the arteries in the brain, causes narrowing of blood vessels that leads to blockages and eventually ischemic stroke, hemorrhagic stroke, and seizures | moyamoya disease
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| a tear of the inside layer of a blood vessel wall that allows blood to flow between the layers that make up the vessel wall | dissecting aneurysm of the head
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| a rare congenital blood vessel malformation in the brain that develops prenatally, a tangled mass of abnormal connection of the arteries and the median prosencephalic vein of Markowski | vein of galen malformation
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