Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Neuroanatomy > Blood Supply to Cerebral Hemispheres and Deep Structures > Flashcards

Blood Supply to Cerebral Hemispheres and Deep Structures Flashcards

1
Q

What supplies the basilar artery

A

The vertebral arteries (posterior)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What bifurcates to create the posterior cerebral arteries?

A

The basilar artery

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Identify the components of the Circle of Willis. What two systems does it join?

A

Joins anterior system and vertebral system Base = posterior cerebral artery Sides = Anterior communicating artery Top = middle cerebral and anterior cerebral arteries

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What supplies the middle and anterior cerebral arteries?

A

The internal carotid arteries

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What does the posterior communicating artery connect

A

The posterior cerebral arteries to the internal carotid system

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is the perfusion territory of the posterior cerebral artery (and its branches)?

A

1) Portions of the midbrain (overlaps laterally with superior cerebellar artery) 2) Medial surface of occipital and temporal lobes 3) Inferior temporal lobe 4) lateral temporal and occipital lobes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What structure is perfused by deep branches of the PCA?

A

The thalamus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is the perfusion area of the MCA?

A

-Frontal and parietal cortex above lateral fissure -A small portion of the inferior frontal lobes (more laterally than the (ACA) -Basal ganglia and insula via lenticulostriate arterial branches

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Which regions are supplied by the lenticulostriate (MCA) arteries?

A

Basal ganglia Insula

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is supplied by the ACA

A

-Most of the medial surface of the frontal and parietal lobes -Most of the inferior surface of the frontal lobes (more medially than the MCA) -1-2cm of the lateral surface of the frontal and parietal lobes (everything that the MCA misses)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Where does the ACA rest relevant to the CC?

A

anteriorly and dorsally

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What are the two branches off the internal carotid artery?

A

1) MCA 2) anterior choroidal arteries

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What structures are supplied by anterior choroidal arteries?

A

Portions of: GP putamen, tail of caudate, posterior limb of IC, hippocampus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is the destination of choroidal arteries?

A

Choroid plexus in lateral ventricle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What are choroidal arteries vulnerable to?

A

Increases in blood pressure (narrow compared to internal carotid)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Which areas (shaded) are supplied by the anterior choroidal arteries?

A
  • hippocampus (orange)
  • inf horn of lateral ventricle (blue)
  • GPi (green)
  • Posterior limb of IC (brown)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Name the artery that corresponds to each perfusion area

A

Green - ACA

Blue - MCA

Yellow - PCA

18
Q

What is a watershed area?

A

The area where two perfusion areas come together (e.g, ACA-MCA; MCA-PCA)

  • Vulnerable to drops in blood pressure and arterial occlusion
19
Q

What supplies the putamen?

A

Mostly MCA, some anterior by ACA

20
Q

What supplies the caudate?

A

ACA, MCA, and PCA

21
Q

What supplies the thalamus?

A

PCA

22
Q

Name the vessel that supplies each area

A
23
Q

Which artery supplies portions of the caudal and rostral medulla?

A

Vertebral

24
Q

Which vessel perfuses each area (horizontal through mid-thalamus)

A
25
Q

What supplies the vertebral arteries?

A

Subclavian arteries

26
Q

Which artery supplies these regions

A

Vertebral

27
Q

What are the three main branches of the vertebral artery

A
  1. Anterior spinal artery
  2. Posterior spinal arteries (2)
  3. Posterior inferior cerebellar arteries (PICAs)
28
Q

Where do the branches of the vertebral artery form to create the basilar artery?

A

Pontomedullay junction

29
Q

What is the perfusion area of the anterior spinal artery in the medulla?

A

Medial (rostral and caudal)

30
Q

What is the perfusion area of the posterior spinal arteries in the medulla?

A
31
Q

What supplies the lateral ROSTRAL medulla?

A

PICAs (posterior inferior cerebellar arteries)

32
Q

Which artery supplies most of the pons?

A

Basilar

33
Q

Which two arteries does the basilar artery branch into at the level of the pons?

A

1) Superior cerebellar arteries
2) AICAs (anterior inferior cerebellar arteries)

34
Q

What do the superior cerebellar arteries supply?

A

Portions of midbrain, rostral pons and cerebellum

  • Lateral midbrain
  • Dorso-lateral pons
35
Q

What do AICAs supply?

A

-small portion of the caudal pons and the middle cerebellar peduncles

36
Q

Which arteries does the basilar artery bifurcate into at the level of the midbrain?

A

Posterior cerebral arteries

37
Q

What is the circle of willis

A

Site where the posterior vertebral-basilar system and internal carotid system anastamose

38
Q

What does the superior cerebellar

A
39
Q
A
40
Q

Name these arteries

A

1) Vertebral; 2) Common Carotid; (*) Basilar; 3) External carotid; 4) internal carotid; 5) MCA; 6) ACA

41
Q
A

Neuroanatomy (13 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions