Artery of the Brain (2 minutes)

Which arteries are responsible for supplying approximately 80% of the brain's blood?

• Vertebral arteries

• Internal carotid arteries

After ascending to the brain, the internal carotid arteries split into which two main arteries?

• Posterior cerebral and basilar arteries

• Anterior cerebral and middle cerebral arteries

What artery is formed when the two vertebral arteries come together?

• Anterior spinal artery

• Basilar artery

What is the primary function of the Circle of Willis (COW)?

• To supply blood to the spinal cord.

• To allow blood flow to continue if a major vessel is blocked on one side of the brain.