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Old 11-10-2012
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Arrow Billy Step 1 Questions # 80

A 76-year-old woman dies at home from sudden cardiac arrest after the onset of ventricular fibrillation. The family consents to an autopsy that reveals several small infarcts throughout the basal ganglia. Assuming that the defects arise from a single vessel within the central nervous system, pathology from which artery would be most consistent with this finding?


(A) Anterior cerebral artery
(B) Anterior communicating artery
(C) Lateral striate artery
(D) Posterior cerebral artery
(E) Vertebral cerebral artery
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Old 11-11-2012
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Default Cc

C............
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Old 11-11-2012
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Default My answer c

Lateral striate arteries branch of middle cerebral artery
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I choose C. Lateral Striate artery
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Old 11-11-2012
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Quote:
Originally Posted by billy View Post
A 76-year-old woman dies at home from sudden cardiac arrest after the onset of ventricular fibrillation. The family consents to an autopsy that reveals several small infarcts throughout the basal ganglia. Assuming that the defects arise from a single vessel within the central nervous system, pathology from which artery would be most consistent with this finding?


(A) Anterior cerebral artery
(B) Anterior communicating artery
(C) Lateral striate artery
(D) Posterior cerebral artery
(E) Vertebral cerebral artery
C. Lateral striate artery


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Old 11-11-2012
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Correct Answer C is correct

The lateral striate arteries are sometimes referred to as the “arteries
of stroke” and are penetrating branches of the middle cerebral artery that supply the internal capsule, caudate, putamen, and globus pallidus. Infarcts of this region frequently occur in the setting of long-standing hypertension and are known as lacunar infarcts
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