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S2 Neuroscience > Blood Supply > Flashcards

Blood Supply Flashcards

1
Q

CNS utilizes how much of the CO

-% and mL

A

17%

850 mL

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2
Q

CNS burns approximately _____ mL O2

A

3.3

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3
Q

changes in blood circulation occur as…

A

CVAs; strokes

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4
Q

major arterial supply to the brain is derived from…

A

two internal carotids

vertebral-basilar system

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5
Q

where do the internal carotids and vertebral-basilar system anastomose?

A

around the base of the brain as the Anastomotic Circle of Willis

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6
Q

vessels involved in the Anastomotic Circle of Willis

A 
anterior cerebral arteries
anterior communicating artery
internal carotid arteries
posterior communicating arteries
posterior cerebral arteries
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7
Q

arteries in the internal carotid system

A 
anterior choroidal artery
posterior communicating artery
middle cerebral artery
anterior cerebral artery
striatal (ganglionic or central) arteries
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8
Q

anterior choroidal artery

-associated with…

A

choroid plexus

temporal lobe

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9
Q

posterior communicating artery

-_____ for _____

A

posterolateral ganglionic arteries for thalamus and basal ganglia

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10
Q

middle cerebral artery

-function

A

blood supply to the lateral surface of the cerebral hemispheres

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11
Q

anterior cerebral artery

-function

A

blood supply to the medial surface of the cerebral hemispheres, rostral to the parieto-occipital sulcus

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12
Q

striatal arteries

-function

A

penetrating arteries that supply the subcortical structures; basal ganglia, diencephalon, subcortical white matter

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13
Q

arteries of the vertebral-basilar system

A 
vertebral artery
anterior spinal artery
posterior spinal artery
posterior inferior cerebellar artery (PICA)
basilar artery
anterior inferior cerebellar artery (AICA)
superior cerebellar artery
posterior cerebral artery
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14
Q

vertebral artery

-function

A

anterolateral medulla

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15
Q

anterior spinal artery

-function

A

blood supply to anteromedial medulla and anterior spinal cord

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16
Q

posterior spinal artery

-function

A

blood supply to posterior and caudal medulla, posterior spinal cord

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17
Q

posterior inferior cerebellar artery (PICA)

-function

A

blood supply to cerebellum and lateral part of medulla

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18
Q

basilar artery

-function

A

supplies pons, cerebral peduncles

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19
Q

anterior inferior cerebellar artery (AICA)

-function

A

supplies pontine tegmentum and cerebellum

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20
Q

superior cerebellar artery

-function

A

dorsal midbrain, cerebellar cortex, and deep nuclei

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21
Q

posterior cerebral artery

-function

A

blood supply to midbrain, ventral and medial parts of the cerebral hemispheres

22
Q

important veins

A

Great vein of Galen
cerebral veins
Dural veins

23
Q

Great vein of Galen

  • empties into…
  • what does it drain
A

empties into straight sinus

drains subcortical structures

24
Q

dural veins

-bridge from _____ to _____

A

cortex to dural sinuses

25
Q

the caudal medulla receives vascularization from…

A

posterior spinal artery
anterior spinal artery
PICA
vertebral artery

26
Q

in the caudal medulla, what does the posterior spinal artery supply

A

nucleus gracilis
fasciculus gracilis
nucleus cuneatus
fasciculus cuneatus

27
Q

in the caudal medulla, what does the anterior spinal artery supply

A

internal arcuate fibers
olivary nucleus
pyramids
medial lemniscus

28
Q

in the caudal medulla, what does the PICA supply

A

spinal nucleus of V
spinal tract of V
dorsal spinocerebellar tract

29
Q

in the caudal medulla, what does the vertebral artery supply

A

ventral spinocerebellar tract

spinothalamic tract

30
Q

the rostral medulla receives vascularization from…

A

posterior cerebral artery
anterior spinal artery
PICA
vertebral artery

31
Q

in the rostral medulla, what does the posterior cerebral artery supply

A 
dentate nucleus
interposed nucleus
-4E - emboliform
-4G - globose
fastigal nucleus
32
Q

in the rostral medulla, what does the anterior spinal artery supply

A

MLF
pyramids
medial lemniscus

33
Q

in the rostral medulla, what does the PICA supply

A 
dorsal motor nucleus of X
medial vestibular nucleus
spinal vestibular nucleus
dorsal cochlear nucleus
ventral cochlear nucleus
inferior cerebellar peduncle
solitary tract
solitary nucleus
spinal nucleus of V
spinal tract of V
34
Q

in the rostral medulla, what does the vertebral artery supply

A 
hypoglossal nucleus
inferior olivary complex
olivocerebellar fibers
fascicles of hypoglossal nerve
central tegmental tract
spinothalamic tract
35
Q

the caudal pons is vascularized by…

A

AICA
long circumferential branch of basilar artery
paramedian branch of basilar artery
short circumferential branch of basilar artery

36
Q

in the caudal pons, what does the AICA supply

A

superior cerebellar peduncle
inferior cerebellar peduncle
middle cerebellar peduncle

37
Q

in the caudal pons, what does the long circumferential branche of the basilar artery supply

A 
facial colliculus
MLF
geniculum (genu) of facial nerve fibers
abducens nucleus
fascicles of facial nerve
lateral vestibular nucleus
spinal trigeminal nucleus
spinal trigeminal tract
facial motor nucleus
superior olivary nucleus
central tegmental tract
spinothalamic tract
medial lemniscus
transverse pontine fibers
38
Q

in the caudal pons, what does the paramedian branch of the basilar artery supply

A

fasciciles of abducens nerve
trapezoid body
corticospinal and corticobulbar tracts

39
Q

in the caudal pons, what does the short circumferential branch of the basilar artery supply

A

pontine nuclei

40
Q

the middle pons is vascularized by…

A

long circumferential branch of basilar artery
short circumferential branch of basilar artery
paramedian basilar artery

41
Q

in the middle pons, what does the long circumferential branch of the basilar artery supply

A 
superior vestibular nucleus
mesencephalic tract and nucleus of the trigeminal nerve
main sensory nucleus of trigeminal nerve
trigeminal motor nucleus
fascicles of trigeminal nerve
MFL
medial lemniscus
spiral - lateral lemniscus
central tegmental tract
42
Q

in the middle pons, what does the short circumferential branch of the basilar artery supply

A

pontine nuclei

43
Q

in the middle pons, what does the paraemdian basilar artery supply

A

trapezoid body

44
Q

the inferior colliculus of the midbrain is vascularized by…

A

long circumflex posterior cerebral artery
short circumflex posterior cerebral artery
basilar bifurcation and posterior cerebral artery

45
Q

in the inferior colliculus, what does the long circumflex posterior cerebral artery supply

A 
inferior colliculus
nucleus of inferior colliculus
lateral lemniscus
periaqueductal gray
brachium of inferior colliculus
46
Q

in the inferior colliculus, what does the short circumflex posterior cerebral artery supply

A

CTT
medial lemniscus
spiral lemniscus (thalamic tract)

47
Q

in the inferior colliculus, what do the basilar bifurcation and posterior cerebral arteries supply

A 
MLF
trochlear nucleus
decussation of superior cerebellar peduncles
substantia nigra
cerebral peduncle
48
Q

the superior colliculus of the midbrain is vascularized by…

A

long circumflex branch of posterior cerebral artery
short circumflex branch of posterior cerebral artery
paramedial branch of basilar artery

49
Q

in the superior colliculus, what does the long circumflex branch of the posterior cerebral artery supply

A

superior colliculus
commissure of SC
pulvinar

50
Q

in the superior colliculus, what does the paramedian branch of the basilar artery supply

A 
oculomotor complex
MLF
red nucleus
substantia nigra
dentatorubrothalamic tract
cerebral peduncle
central tegmental tract
51
Q

in the superior colliculus, what does the short circumflex branch of the posterior cerebral artery supply

A 
periaqueductal grey
cerebral aqueduct
brachium of inferior colliculus
medial geniculate nucleus
lateral geniculate nucleus
optic tract
medial lemniscus
spiral lemniscus

S2 Neuroscience (25 decks)

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