Topic 14 Blood supply to the brain, brainstem, cerebellum ect

Question 1

What does the ICA ( internal carotid artery) supply

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Answer 1

Bifurcates into MCA and ACA

• Optic nerves and retina
• Cortex and deep white matter of frontal and parietal lobes
• lateral aspects of temporal and occipital lobes
• Corpus callosum( except posterior portion)
• Most of basal ganglia and internal capsule

Question 2

What does the vertebro-basilar system supply

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Answer 2

Upper cervical spinal cord
Brainstem
Cerebellum
Most of thalamus & hypothalamus
Cortex and deep white matter of posterior medial parietal lobes, temporal and occipital lobes
Posterior portion( splenium) of corpus callosum

Question 3

What does ACA supply

Answer 3

LL>UL
Internal capsule( Anterior limb and genu)
Medial surface of FRONTAL and PARIETAL lobe
(primary motor and sensory area for leg & foot)
Septal area(septum pellucidum)
Corpus callosum( except posterior portion)

BASAL GANGLIA

• Ventral head of caudate
• Putamen

Question 4

What does the MCA supply

Answer 4

UL>LL
Temporal lobe
Anterior lateral part of frontal lobe
Parietal lobe
Posterior limb of internal capsule
Frontal eye feilds

BASAL GANGLIA
Head and body of caudate
Globus pallidus
putamen

L side broccas and wernikes areas

Question 5

What does the PCA supply

Answer 5

Diencephalon
Midbrain
Cerebral peduncles
Superior cerebellar peduncle
reticular formation
optic radiation
Splenium of corpus callosum
Hippocampal formation
Posterior fornix

BASAL GANGLIA

• Substantia nigra
• Subthalamic nucleus

Question 6

name the segments of the circle of Willis

Answer 6

ASA -anterior spinal artery
VA-vertebral artery
PICA- posterior inferior cerebellar artery
AICA- anterior inferior cerebellar artery
BA- basilar artery
SCA- Superior cerebellar artery
PCA - Posterior cerebral artery
PCoA - Posterior communicating artery
ICA- interior carotid artery
...
...

Question 7

Blood supply to cerebellum

Answer 7

Superior surface:
SCA superior cerebellar artery

Ant & inf surface:
PICA: posterior infereior cerebellar artery
AICA: anterior inferior cerebellar artery

Question 8

Blood supply to Midbrain

Answer 8

PCA posterior cerebral artery
SCA superior cerebelllar artery
BA Basilar artery

Question 9

Blood supply to Pons

Answer 9

BA Basilar artery

AICA Anterior inferior cerebellar artery

Question 10

Blood supply to medulla

Answer 10

VA Vertebral artery

PICA Posterior inferior cerebellar artery

Question 11

Blood supply to Basal ganglia

Answer 11

Caudate nucleus MCA & ACA

Putamen MCA & ACA

Globus pallidus MCA & AcHA (anterior choroidal)

Substantia Nigra PCA & PCoA
Subthalamic nucleus PCA & PCoA