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NeuroAnatomy > CNS Vasculature > Flashcards

CNS Vasculature Flashcards

1
Q

anterior circulation

RIGHT side

A
  1. L ventricle
  2. Ascending aorta
  3. Brachiocephalic a.
  4. R common carotid .
  5. R internal carotid a.
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2
Q

anterior circulation

LEFT side

A
  1. L ventricle
  2. Ascending aorta
  3. Aortic arch
  4. L common carotid a.
  5. L internal carotid a.
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3
Q

posterior circulation

RIGHT side

A
  1. L ventricle
  2. Ascending aorta
  3. Brachiocephalic a.
  4. R subclavian a.
  5. R vertebral a
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4
Q

posterior circulation

LEFT side

A
  1. L ventricle
  2. Ascending aorta
  3. Aortic arch
  4. L subclavian a.
  5. L vertebral a.
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5
Q

anterior circulation includes…

A

a. Anterior cerebral a.
b. Middle cerebral a.
c. Anterior choroidal a.
d. Anterior communicating a.
e. Posterior communicating a.
f. Ophthalmic a.

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6
Q

anterior cerebral a.

ACA

A
  • Runs in longitudinal fissure above corpus callosum – to medial aspects of frontal and parietal lobes

i- Branches into 2 major arteries 1. callosomarginal a.
2. pericallosal a.

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7
Q

medial cerebral a.

MCA

A
  • Travels laterally in sylvan fissure to lateral frontal and parietal lobes, insular cortex, medial and lateral temporal lobes, subcortical deep structures
  • Feeds Basal ganglia, internal capsule, limbic structures
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8
Q

anterior choroidal a.

A

a. Arises off of the internal carotid a., near where the MCA arises

Supplies:

  1. Choroid plexus of lateral ventricles – CSF
  2. Optic tract, deep structures in the telencephalon
  3. Posterior limb of internal capsule, portions of basil ganglia
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9
Q

lenticulostiate a.

A

a. Small a. off of the stem of the MCA

b. Supplies the basil ganglia

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10
Q

components of the circle of willis

A
  1. ACA
  2. anterior communicating a
  3. posterior communicating a
  4. PCA
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11
Q

posterior circulation includes…

A

a. Posterior cerebral a.
b. Basilar a.
c. Superior cerebellar a.
d. Labyrinthine a.
e. Anterior inferior cerebellar a. AICA
f. Posterior interior cerebellar a. PICA
g. Anterior spinal a.

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12
Q

posterior cerebral a

PCA

A

Superficial branch
ii. SUPPLY medial and inferior occipital lobes, inferior temporal lobes

Deep branch
ii. SUPPLY subcortical structures: midbrain, thalamus, subthalmic structures

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13
Q

what branches of off the vertebral a.

A
  1. posterior inferior cerebellar a
  2. anterior spinal a
  3. posterior spinal a
  4. basilar a
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14
Q

what branches off of the basilar a.

A
  1. anterior inferior cerebellar a.
  2. labyrinthine a.
  3. pontine a.
  4. superior cerebellar a.
  5. posterior cerebral a.
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15
Q

PICA

supply

A

SUPPLY lateral medulla and inferior cerebellum

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16
Q

anteriore spinal a.

supply

A

SUPPLY medial medulla and anterior 2/3 of spinal cord

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17
Q

posterior spinal a.

supply

A

SUPPLY dorsal medial medulla and posterior 1/3 of spinal cord

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18
Q

AICA

supply

A

SUPPLY lateral and caudal pons and cerebellum (small region)

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19
Q

labyrinthine a.

supply

A

SUPPLY internal acoustic meatus to cochlea and vestibular apparatus

20
Q

pontine a.

supply

A

SUPPLY rostral lateral pons

21
Q

superior cerebellar a.

supply

A

SUPPLY cerebellum, some of rostral, dorsolateral pons

22
Q

posterior cerebral a.

supply

A

SUPPLY Inferior temporal and occiput

23
Q

segmental radicular a.

A
  • branch off descending thoracic aorta

- enter via nerve roots

24
Q

what are the two major pathways that drainage will travel through the cerebral sinus system?

A
  1. Straight sinus - superior and inferior sagittal sinus - transverse sinus - sigmoid sinus - internal jugular v.
  2. Cavernous sinus - superior and inferior petrosal sinus - internal jugular v.
25
Q

what makes up the superficial veinous drainage

A
  1. superior cerebral v.
  2. Superficial middle cerebral v
  3. inferior cerebral v
  4. superior anastomotic v.
  5. inferior anastomotic v.
26
Q

superior cerebral v

drains

A

i. DRAINS superior surface of each hemisphere

27
Q

superior cerebral v

goes to..

A

superior sagittal sinus

28
Q

Superficial middle cerebral v

drains

A

i. DRAINS lateral surface of each hemisphere

29
Q

Superficial middle cerebral v

goes to…

A

cavernous sinus

30
Q

inferior cerebral v

drains

A

i. DRAINS inferior aspect of each hemisphere

31
Q

inferior cerebral v

goes to…

A

cavernous sinus and transverse sinus

32
Q

superior anastomotic v.

connects…

A

i. Connects superficial middle cerebral v to superior sagittal sinus

33
Q

inferior anastomotic v. connects…

A

i. Connects superficial middle cerebral v to transverse sinus

34
Q

What veins make up the deep venous system

A
  1. anterior cerebral v
  2. deep middle cerebral v.
  3. subepndymal v.
  4. medullary v.
35
Q

anterior cerebral v

drains

A

i. DRAINS deep middle regions of each hemisphere

36
Q

anterior cerebral v

goes to…

A

transverse sinus

37
Q

deep middle cerebral v.

drains..

A

i. DRAINS insular cortex and some deep lateral regions of each hemisphere

38
Q

deep middle cerebral v.

goes to…

A

transverse sinus

39
Q

what 3 veins make up the subepndymal v.

A
  1. basal v
  2. internal cerebral v
  3. great v of galen
40
Q

basal v

drains

A
  1. DRAINS medial temporal lobes
41
Q

basal v

goes to…

A

great v of galen

42
Q

internal cerebral v

goes to…

A

great v of galen

43
Q

great v of galen

drains…

A

DRAINS thalamus

44
Q

great v of galen

goes to…

A

inferior sagittal and straight sinus

45
Q

medullary v

A

brain stem

NeuroAnatomy (6 decks)

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