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NSG Knowledge Update Flashcards

1
Q

Branches off C1 segment?

A
  1. None.
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2
Q

Branches off C2 segment?

A
  1. None.
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3
Q

Branches off C3 segment?

A
  1. None.
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4
Q

Branches off C4. segment?

A
  1. Meningohypophyseal trunk and includes the following branches: tentorial arteries of Bernasconi and Cassinari, dorsal meningeal artery and inferior hypophyseal artery.
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5
Q

Branches off C5 segment?

A
  1. None.
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6
Q

Branches off C6 segment?

A
  1. Ophthalmic artery.

2. Superior hypophyseal artery.

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7
Q

Branches off C7 segment?

A
  1. PCom.

2. Anterior choroidal.

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8
Q

What are the segments of the MCA?

A
  1. M1 - horizontal or sphenoidal segment.
  2. M2 - insular segment.
  3. M3 - opercular segment.
  4. M4 - cortical segment.
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9
Q

Course of the M1 segment.

A
  1. MCA from origin at ICA terminus to the MCA bifurcation.
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10
Q

Branches off the M1 segment.

A
  1. Lenticulostriate perforating arteries.

2. Anterior temporal artery.

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11
Q

Course of the M2 segment.

A
  1. MCA from bifurcation to circular sulcus of insula, most commonly inferior and superior trunks.
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12
Q

Course of the M3 segment.

A
  1. Branches from circular sulcus of insula over operculum to surface of Sylvian fissure.
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13
Q

Course of the M4 segment.

A
  1. Branches to lateral convexity.
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14
Q

Territory supplied by the recurrent artery of Heubner?

A
  1. Head of the caudate.
  2. Anterior limb of the IC.
  3. Putamen and globus pallidus.
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15
Q

Course of the A1 segment.

A
  1. ACA from origin at ICA terminus to ACOM.
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16
Q

Course of the A2 segment.

A
  1. ACA from ACOM to origin of callosomarginal artery.

2. Most common segment for origin of recurrent artery of Heubner.

17
Q

Course of the A3 segment.

A
  1. ACA from origin of callosomarginal artery to superior surface of corpus callosum.
18
Q

Course of the A4 segment.

A
  1. Pericallosal artery.
19
Q

Course of the A5 segment.

A
  1. Terminal branches.
20
Q

Gerstmann syndrome.

A
  1. Dominant parietal lobe lesion.

2. Agraphia, acalculia, R-L confusion, finger agnosia.

21
Q

Course of the V1 segment.

A
  1. From of the origin off the subclavian to the level of C6 transverse foramen.
22
Q

Course of the V2 segment.

A
  1. Traverses the cervical spine from C6 to C2 transverse foramen.
23
Q

Course of the V3 segment.

A
  1. From the C2 transverse foramen until the artery pierces the dura.
24
Q

Course of the V4 segment.

A
  1. Intracranial portion of the VA traversing the medulla anterolaterally.
25
Q

Course of the P1 segment.

A
  1. From the BA apex to the PCOM.
26
Q

Course of the P2 segment.

A
  1. From PCOM to the inferior temporal branches in the perimesencephalic cistern.
27
Q

Course of the P3 segment.

A
  1. Starts distal to the origin of the inferior temporal arteries and ends at the start of the calcarine fissure.
28
Q

Course of the P4 segment.

A
  1. Traverses posteromedial within the calcarine fissure and supplies the splenial artery.
29
Q

Territories supplied by the temporal branches of the PCA.

A
  1. Uncus, parahippocampus, and medial and lateral occipitotemporal gyri.
30
Q

Territories supplied by the occipital branches of the PCA.

A
  1. Lingual and cuneal gyri of the occipital lobe.
  2. Primary and visual association areas.
  3. Posterolateral surface of the occipital lobe.
  4. Inferior surface of the temporal lobe.

NS (25 decks)

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