Exam 2: Blood Circulation of the CNS (be able to identify the arteries that supply given parts of the CNS)

Question 1

An issue with which artery / vein would cause issues with:

• Medial temporal lobe (uncus, hippocampus, amygdala)
• Basal ganglia (tail of caudate, globus pallidus)
• Inferior part of posterior limb of internal capsule
• Optic tract
• Lateral geniculate nucleus
• Cerebral peduncle

Answer 1

Anterior Choroidal Artery

Question 2

An issue with which artery / vein would cause issues with:

• Segments A1-A5

(be able to recognize the segments on MRI)

Answer 2

Anterior Cerebral Artery

Question 3

An issue with which artery / vein would cause issues with:

• Inferior head of the caudate nucleus

• Anterior limb of internal capsule

• Putamen

Answer 3

Medial Striate Artery

(recurrent artery of Huebner)

Question 4

An issue with which artery / vein would cause issues with:

• M1-M4 segments
• Superior and inferior trunks travel along the insular cortex (M2), opercula (M3), and lateral cortex (M4)
• Lenticulostriate arteries

Answer 4

Middle Cerebral Artery

Question 5

An issue with which artery / vein would cause issues with:

• Inferior and medial temporal lobe
• Occipital lobe
• Midbrain
• Thalamus
• Choroid plexus of lateral and third ventricles

Answer 5

Posterior Cerebral Artery

Question 6

An issue with which artery / vein would cause issues with:

• Watershed Zones

Answer 6

ACA-MCA

MCA-PCA

Question 7

An issue with which artery / vein would cause issues with:

• optic chiasm and hypothalamus

Answer 7

Perforating Branches of the Circle of Willis:

Anteromedial group

Question 8

An issue with which artery / vein would cause issues with:

• lenticulostriate
• anterior perforated substance
• interior of hemisphere (basal ganglia)

Answer 8

Perforating Branches of the Circle of Willis:

Anterolateral group

Question 9

An issue with which artery / vein would cause issues with:

• crus cerebri, middle/caudal hypothalamus, and thalamus
• posterior perforated substance

Answer 9

Perforating Branches of the Circle of Willis:

Posteromedial group

Question 10

An issue with which artery / vein would cause issues with:

• thalamus and choroid plexus of lateral and third ventricles

Answer 10

Perforating Branches of the Circle of Willis:

Posterolateral group

Question 11

An issue with which artery / vein would cause issues with:

• anterolateral medulla

Answer 11

Vertebral Artery

Question 12

An issue with which artery / vein would cause issues with:

• medial/inferior cerebellum, lateral medulla, and choroid plexus of 4th ventricle
• Posterior spinal arteries

Answer 12

Posterior inferior cerebellar artery (PICA)

Question 13

An issue with which artery / vein would cause issues with:

• posterolateral medulla, choroid plexus exiting the lateral aperture, lateral caudal pons, middle lateral cerebellum
• internal acoustic meatus
• pons
• rostral pons and superior cerebellum

Answer 13

Basilar Artery

Question 14

What artery supplies each of the areas of the Cerebellum?

• red, yellow, and green areas?

Answer 14

Cerebellar Blood Supply:

red: PICA

yellow: AICA

green: SCA

Question 15

What artery supplies each of the areas of the Pon?

• red, yellow, and green areas?

Answer 15

Pontine arteries:

red: Long circumferential

yellow: Short circumferential

green: Paramedian

Question 16

Know and understand the Brainstem Blood Supply

Answer 16

Know and understand the Brainstem Blood Supply

Question 17

An issue with which artery / vein would cause issues with:

• Dorsal column / Medical lemniscus

Answer 17

Posterior Spinal Artery

Question 18

An issue with which artery / vein would cause issues with:

• ventral parts of spinal cord

Answer 18

Anterior spinal artery