Quiz on Cerebral Circulation and Stroke

What is the primary function of the Circle of Willis?

• To regulate blood pressure

• To filter blood entering the brain

• To connect the anterior and posterior circulations

• To supply blood to the heart

What is the main cause of an ischemic stroke?

• Excessive blood flow to the brain

• Infection in the brain tissue

• Blockage of a vessel supplying the brain

• Rupture of a cerebral blood vessel

Which of the following is a risk factor for ischemic stroke?

• Low blood pressure

• Atrial fibrillation

• Young age

• High physical activity

What is a lacunar infarct?

• A rupture in the Circle of Willis

• A clot in the heart

• A small cavity in deep brain structures

• A large clot in the carotid artery

What is the typical origin of an embolus in a cardiogenic embolic stroke?

• The lungs

• The left side of the heart

• The liver

• The right side of the heart

What is a common symptom of a hemorrhagic stroke?

• Chronic cough

• Mild fever

• Severe headache

• Gradual onset of weakness

What is the primary diagnostic tool to rule out hemorrhage in stroke patients?

• Ultrasound

• Blood test

• CT scan

• Electrocardiogram (ECG)

What is the main treatment for an aneurysmal subarachnoid hemorrhage?

• Antibiotics

• Surgical clipping or endovascular coiling

• Physical therapy

• Dietary changes

What is a key feature of arteriovenous malformations (AVMs)?

• They are always benign

• They are prone to rupture

• They occur only in the elderly

• They have a normal capillary bed

What is a transient ischemic attack (TIA)?

• A chronic condition

• A type of hemorrhagic stroke

• A brief episode of focal ischemic symptoms

• A permanent loss of brain function