Blood supply to the brain

The video tutorial by Dr. Morton, the Noted Anatomist, provides an in-depth explanation of the brain's blood supply, focusing on the internal carotid and vertebrobasilar arteries. It covers the anatomy and function of these arteries, their branches, and the areas of the brain they supply. The tutorial also explains the Circle of Willis, its role in collateral circulation, and its historical background. The video emphasizes the importance of these structures in maintaining brain function and preventing ischemic strokes.

Which arteries are responsible for supplying the anterior and posterior circulation of the brain?

• Aorta and pulmonary arteries

• Common carotid and jugular veins

• External carotid and subclavian arteries

• Internal carotid and vertebrobasilar arteries

What is the primary function of the internal carotid artery?

• Draining blood from the brain

• Supplying the posterior circulation of the brain

• Supplying the anterior circulation of the brain

• Connecting the brain to the spinal cord

Which artery is a branch of the internal carotid artery and supplies the eye?

• Basilar artery

• Middle cerebral artery

• Ophthalmic artery

• Vertebral artery

What is the role of the anterior cerebral artery?

• Supplying the lateral aspect of the cerebral hemispheres

• Supplying the medial aspect of the cerebral hemisphere

• Supplying the occipital lobe

• Supplying the cerebellum

From which artery does the vertebral artery arise?

• Subclavian artery

• Internal carotid artery

• External carotid artery

• Aorta

What is the function of the posterior inferior cerebellar artery (PICA)?

• Supplying the anterior part of the cerebrum

• Supplying the lateral aspect of the cerebral hemispheres

• Supplying the spinal cord

• Supplying the bottom back of the cerebellum

Which artery supplies the top of the cerebellum?

• Superior cerebellar artery

• Middle cerebral artery

• Anterior inferior cerebellar artery

• Posterior cerebral artery

What is the primary role of the circle of Willis?

• To supply blood to the spinal cord

• To provide collateral circulation in the brain

• To drain blood from the brain

• To connect the brain to the heart

Who is credited with naming the circle of Willis?

• Hippocrates

• Thomas Willis

• Andreas Vesalius

• William Harvey

What happens if there is an occlusion within the circle of Willis?

• The brain immediately suffers a stroke

• Redundancy allows for continued circulation

• The spinal cord compensates for the loss

• Blood flow is completely stopped