Understanding Ischemic Stroke

What happens to brain tissue when a cerebral artery is blocked?

• It regenerates new neurons.

• It becomes more active.

• It receives more oxygen.

• It can die off quickly.

What is the ischemic core?

• A zone with increased glucose.

• A zone with severe ischemia.

• A zone with enhanced neuron activity.

• A zone with normal blood flow.

How long does it take for neurons in the ischemic core to die off?

• A few hours

• A few days

• A few weeks

• A few minutes

What allows the ischemic penumbra to survive longer than the core?

• Enhanced oxygen production

• Higher glucose levels

• Blood from collateral arteries

• Increased neuron activity

Why is the penumbra the area where medications are most effective?

• It is the largest part of the brain.

• It has the highest blood flow.

• It is unaffected by ischemia.

• It can be rescued by restoring blood flow.