Brain Circulation

Question 1

Describe arteries supplying the brain from the posterior

Answer 1

2 vertebral arteries pass up transverse foremen of cervical vertebra and join in front of the brainstem forming basilar artery.
It divides into 2 posterior communicating arteries and 2 posterior cerebral arteries
Which complete the circle of Willis

Question 2

Describe arteries supplying the brain from the anterior

Answer 2

Internal carotids pass I front of neck and divide to form the anterior cerebral arteries and middle cerebral arteries
These two sections are joined anteriorly by the anterior communicating artery
To form front section of circle of Willis

Question 3

Which regions of the brain does the anterior cerebral artery supply

Answer 3

Medial part of frontal lobes - primary motor cortex

Medial part of superior parietal lobes - primary sensory cortex

Question 4

Which area of the brain does the middle cerebral artery supply

Answer 4

Lateral parts of frontal and parietal lobes
Lateral and inferior regions of temporal lobes
Broca’s area
Wernickes area
Basal ganglia

Question 5

What does the posterior cerebral artery supply

Answer 5

Occipital lobes
Posterior part of temporal lobes
Thalamus

Question 6

What does the basilar artery supply

Answer 6

All of brainstem
Cerebellum
Nuclei of cranial nerves