Cerebral cortex blood supply

Question 1

on medial view of cerebral hemisphere:

separates the frontal and parietal lobes

Answer 1

cingulate sulcus

Question 2

on medial view of cerebral hemisphere: separates the parietal and occipital lobes

Answer 2

parieto-occipital sulcus

Question 3

on medial view of cerebral hemisphere:

divides the occipital lobe horizontally into the superior cuneus and inferior linguine gyrus

Answer 3

calcimine sulcus

Question 4

on lateral view of cerebral hemisphere:

separates the frontal and parietal lobes

Answer 4

central sulcus

Question 5

on lateral view of cerebral hemisphere:

separates the frontal and temporal lobes

Answer 5

lateral sulcus

Question 6

Which cerebral cortex layer is more developed in sensory?

Answer 6

4 : internal granular layer

Question 7

Which cerebral cortex layer is more developed in motor?

Answer 7

# 3: external pyramidal layer 
# 5: internal pyramidal layer

Question 8

Cerebral cortex layers

Answer 8

# 1: molecular layer
# 2: external granular layer
# 3: external pyramidal layer 
# 4 : internal granular layer 
# 5: internal pyramidal layer 
# 6: multiform layer (layer of polymorphic cells)

Question 9

Supplies the lateral surface of the frontal, parietal, and upper temporal lobes

Answer 9

Middle cerebral artery

Question 10

Supplie she posterior limb and the genu of the internal capsule

Answer 10

Middle cerebral artery

Question 11

Supplies most of the basal ganglia

Answer 11

Middle cerebral artery

Question 12

Primary arteries of the vertebrobasilar (posterior circulation)

Answer 12

Vertebral arteries
Basilar arteries
Posterior cerebral arteries

Question 13

branches of the vertebral arteries

Answer 13

1. anterior spinal artery

2. posterior inferior cerebellar (PICA)

Question 14

Supplies anterior 2/3 of spinal cord?

Answer 14

Anterior spinal artery

Question 15

Deficit after stroke: dorsal columns spared; all else bilateral

Answer 15

anterior spinal artery

Question 16

supplies dorsolateral medulla?

Answer 16

posterior inferior cerebellar (PICA)

Question 17

branches of basilar artery

Answer 17

1. pontine arteries
2. anterior inferior cerebellar (AICA)
3. superior cerebellar artery
4. labyrinthine artery (sometimes arises from AICA)

Question 18

supplies base of the pons

Answer 18

pontine artery

Question 19

supplies inferior cerebellum and cerebellar nuclei

Answer 19

AICA

Question 20

supplies dorsal cerebellar hemispheres; superior cerebellar peduncle

Answer 20

superior cerebellar artery

Question 21

supplies inner ear

Answer 21

labyrinthine artery

Question 22

supplies midbrain, thalamus, and occipital lobe

Answer 22

posterior cerebral arteries

Question 23

deficit after stroke: contralateral hemianopia with macular sparing
or
Alexia with agraphia if dominant hemisphere is affected

Answer 23

posterior cerebral arteries

Question 24

Primary arteries of the internal carotid (anterior circulation)

Answer 24

1. ophthalmic artery
2. posterior communicating artery
3. anterior cerebral artery
4. anterior communicating artery
5. middle cerebral artery

Question 25

branch of the ophthalmic artery?

Answer 25

central artery of retina

Question 26

middle cerebral artery branches?

Answer 26

1. outer cortical | 2. lenticulostriate

Question 27

supplies retina?

Answer 27

central artery of retina

Question 28

deficit after stroke: blindness

Answer 28

central artery of retina

Question 29

second most common aneurysm site ( often with CN 3 palsy)?

Answer 29

Posterior communicating artery

Question 30

supplies primary motor and sensory cortex of the (leg and foot)?

Answer 30

Anterior cerebral artery

Question 31

contralateral spastic paralysis and anesthesia of lower limb or frontal lobe abnormalities

Answer 31

Anterior cerebral artery

Question 32

Most common site of aneurysm(berry aneurysm)

Answer 32

anterior communicating artery

Question 33

supplies lateral convexity of hemispheres

Answer 33

outer cortical

Question 34

supplies internal capsule, caudate, putamen, and globes pallidus

Answer 34

lenticulostriate

Question 35

* contralateral spastic paralysis and anesthesia of the upper limb/face ; * gaze palsy; * aphasia ( if dominant hemisphere) * gertzmann syndrome( if dominant hemisphere) * hemi inattention and neglect of contralateral body ( right parietal lobe lesion)

Answer 35

Middle cerebral artery

Question 36

areas 3, 1, 2

Answer 36

primary somatosensory cortex

Question 37

area 4

Answer 37

primary motor cortex

Question 38

area 6

Answer 38

premotor cortex

Question 39

areas 44, 45

Answer 39

brocas speech areas

Question 40

area 22

Answer 40

wernicke area

Question 41

area 39

Answer 41

angular gyrus

Question 42

lesion to primary motor and premotor cortex

Answer 42

contralateral spastic paresis (region depends on area of homunculus affected ); premotor: apraxia

Question 43

lesion to frontal eye fields

Answer 43

eyes deviate to the ipsilateral side

Question 44

lesion to broca's speech area

Answer 44

broca aphasia (expressive, nonfluent aphasia): patent can understand written and spoken language but speech and writing are slow and effortful; patient is aware of problem; also a/w right arm weakness and right lower face weakness

Question 45

lesion to prefrontal cortex

Answer 45

frontal lobe syndrome: symptoms can include poor judgment, difficulty concentrating, and problem solving, apathy and inappropriate social behavior

Question 46

lesion to primary somatosensory cortex

Answer 46

contralateral hemihypesthesia

Question 47

lesion to superior parietal lobule

Answer 47

contralateral astereogenesis/apraxia

Question 48

lesion to inferior parietal lobule (angular gyrus : area 39)

Answer 48

Gerstmann syndrome (if dominant hemisphere): right/left confusion, Alexia, dyscalculia,and dysgraphia, finger agnosia, contralateral hemianopia, or lower quandratonopia; unilateral neglect (non-dominant)

Question 49

lesion to primary auditory cortex

Answer 49

bilateral image --> deafness or unilateral leads to slight hearing loss

Question 50

lesion to wernicke's area

Answer 50

Wernicke aphasia (receptive, fluent aphasia): patient cannot understand any form of language; speech is fast and fluent but not comprehensible Sensory dysprosodia (R) dominant lobe

Question 51

lesion to hippocampus

Answer 51

bilateral lesions lead to inability to consolidate short term to long term memories

Question 52

lesion to amygdala

Answer 52

Kluver busy syndrome: hyperplasia, hyper sexuality, and visual agnosia

Question 53

lesion to olfactory bulb, tract, or primary cortex

Answer 53

ipsilateral anosmia

Question 54

lesion to meyer loop ( visual radiations)

Answer 54

contralateral upper quadrantanopia

Question 55

lesion to primary visual cortex

Answer 55

cortical blindness if bilateral or macular sparing hemianopia