The Cerebrovascular System

Front

What is stenosis?

Back

The narrowing of the vessel walls.

Front

What is ischemia?

Back

Reduction of blood flow.

Front

What is the Circle of Willis?

Back

A circular network of arteries at the base of the brain that connects the anterior and posterior blood supply.

Front

What are the main arteries involved in the cerebrovascular system?

Back

Anterior cerebral artery, posterior cerebral artery, internal carotid artery.

Front

What is the function of the anterior cerebral artery?

Back

Supplies blood to the medial portions of the frontal lobes and superior medial parietal lobes.

Front

What is the function of the posterior cerebral artery?

Back

Supplies blood to the occipital lobe and the inferior part of the temporal lobe.

Front

What is the role of the internal carotid artery?

Back

Supplies blood to the brain and face.

Front

What is a blood clot?

Back

A mass of blood that has changed from a liquid to a gel, blocking blood flow.

Front

What is the difference between ischemia and infarction?

Back

Ischemia is a reduction of blood flow, while infarction is tissue death due to prolonged ischemia.

Front

What is collateral circulation?

Back

Alternative pathways for blood flow that develop when primary vessels are obstructed.