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Cranial Nerves/Vess
CT/MRI cranial nerves and vessels
| Question | Answer |
|---|---|
| This is a mixed sensory and motor nerve | Vagus Nerve |
| Blood is supplied to the brain by two pairs of arteries, what are they? | carotids and vertebrals |
| These arteries supply blood to the frontal, temporal and parietal lobes | carotids |
| These arteries supply blood to the posterior circulation of the brain | vertebrals |
| supply blood to the frontal lobe/medial aspect of parietal lobe | anterior cerebrals |
| connects the anterior cerebral arteries | anterior communicating artery |
| This artery is the direct continuation of the internal carotids, supplies blood to temporal and parietal lobes | middle cerebral artery |
| This forms a connections between the internal carotids and the posterior cerebral arteries | posterior communicating artery |
| Composed of the internal carotids, anterior and posterior communicating arteries and the anterior, medial and posterior cerebral arteries | Circle of Willis |
| Venous channels that drain the blood from the brain and meninges | dural venous sinuses |
| Lies along the medial plane, drains blood from the upper cerebral hemispheres | superior sagittal sinus |
| 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 |
| great cerebral vein | Vein of Galen |
| receives blood from inferior sagittal sinus and vein of galen and empties into confluence | Straight sinus |
| point of convergence of the superior, sagittal, straight, occipital and transverse sinuses | confluence of sinuses |
| extend laterally on each side of cerebrum, right generally larger, drains blood from confluence and petrous portions of the temporal bone | transverse sinus |
| follows an S shaped pattern, drains into jugular vein | Sigmoid sinus |
| Rounded, berrylike outpouchings that arise from arterial bifurcation points, most common in the circle of Willis | sacular aneurysm |
| when a blood clot forms in the brains venous sinuses, prevents blood from draining out of the brain | venous sinus occlusion |
| form of short limbed dwarfism | achrondoplasia |
| 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 |
| 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 |
| 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 |
Created by:
abgriz81
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