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9 Cards in this Set
- Front
- Back
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What is the difference between epidural and subdural bleeding?
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Epidural bleeding is arterial from the middle meningeal artery (high pressure system), while subdural bleeding is venous from cerebral veins at the superior sagittal sinus (lower pressure system).
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What type of head injury is often characterized as “the worst headache of my life?”
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Subarachnoid hemorrhage
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At what level is a lumbar puncture performed?
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L3-L4
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What disorder is usually seen in the elderly and characterized by dementia, ataxia, and urinary incontinence?
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• Normal pressure/nonobstructive communicating hydrocephalus.
• (remember: wacky, wobbly, and wet). • It’s typically caused by scarring of the pia-arachnoid and arachnoid villi preventing resorption of the CSF into the superior sagittal sinus. |
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What type of stroke causes monocular blindness?
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• Ophthalmic artery stroke causes monocular blindness; the lesion is anterior to the optic chiasm
• Any lesion posterior to the optic chiasm will affect both eyes |
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What would be the effects of a stroke in the middle cerebral artery? What about a stroke in the anterior cerebral artery?
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• Middle cerebral artery (MCA) stroke causes contralateral motor and sensory deficits in the (face and arm) > leg, and aphasia in the dominant (left) hemisphere.
• Anterior cerebral artery (ACA) stroke causes contralateral motor and sensory deficits in the leg > (arm and face). |
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What type of lesion would cause hemiplegia where the face=arm=leg?
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Stroke/occlusion of a perforating or ganglionic artery, leading to a lesion of the internal capsule.
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What would be the effects of a stroke in the posterior cerebral artery?
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A stroke of the branch supplying the midbrain would produce ventral or Weber’s syndrome (CN 3 palsy and contalateral hemiplasia).
A stroke of the branch supplying the diencephalon would cause thalamic syndrome of Dejerine Roussy. A stroke of the branch supplying medial and inferior surfaces of the temporal and occipital lobes would produce contralateral blindness in visual field of each eye (hemianopsia). |
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What is the most common site of aneurysm in the human body?
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The circle of Willis.
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