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Neuroanatomy > Blood Supply To Brain > Flashcards

Blood Supply To Brain Flashcards

1
Q

Which part of ICA does not give any branch?

A

Cervical part

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2
Q

The petrous, Cavernous and Intracranial parts of the ICA are called

A

Carotid siphon ~ because of its Sigmoid course

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3
Q

4 parts of ICA

A
  1. Cervical part
  2. Petrous part
  3. Cavernous part
  4. Cerebral / Supracavernal part
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4
Q

Branches from Petrous part of ICA

A
  1. Caroticotympanic branch

2. Artery to pterygoid canal

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5
Q

Which part of ICA gives following branches;

Branch to Trigeminal Ganglion

Meningeal branch

Branch to Cavernous sinus

Hypophyseal branches

A

Cavernous Part of the ICA

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6
Q

Branches of Cerebral part / Supracavernal part of ICS

A
  1. Ophthalmic artery
  2. Ant. Choroidal artery
  3. Post. Communicating artery

Terminal Branches;
Anterior and Middle Cerebral Artery

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7
Q

Largest branch of the Vertebral artery is

A

PICA

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8
Q

A disruption in blood supply in the PICA leads to

A

Lateral Medullary Syndrome/
Wallenberg Syndrome

Vertebral artery > PICA

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9
Q

Branches of the Cranial portion of the Vertebral artery are:

A
  1. Meningeal branches ~ to posterior cranial fossa
  2. Post. Spinal Arteries ~ to post. 1/3rd of the spinal cord
  3. Ant. Spinal Artery ~ to ant. 2/3rd of the spinal cord
  4. PICA ~
  5. Medullary branches ~ to medulla
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10
Q

PICA supplies

A

Lateral part of Medulla

Cerebellar hemisphere

Choroid plexus of 4th Ventricle

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11
Q

Labrynthine artery is a branch of

A

AICA 80% > Basilar 20%

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12
Q

Branches of Basilar Artery

A
  1. Pontine Arteries
  2. Labyrinthine artery
  3. AICA
  4. Superior Cerebellar Artery
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13
Q

Circle of Willis does not get a contribution from the Middle cerebral artery.

True/False

A

True

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14
Q

Arteries forming Circle of Willis are:

A
  1. Ant. Comm. artery
  2. Ant. Cerebral arteries
  3. ICA
  4. Post. Comm. Arteries
  5. Post. Cerebral arteries
  6. Basilar artery
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15
Q

Visual Cortex is supplied by

A

Posterior Cerebral Artery

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16
Q

Bifurcation of CCA at the level of

A

C3 — C4 {C4 > C3}

17
Q

Landmarks for CCA bifurcation

A
  1. C4 vertebra

2. Upper border of lamina of thyroid cartilage

18
Q

Blood Supply of Medulla is derived from

A
  1. Anterior Spinal Artery
  2. Posterior Spinal Arteries
  3. Vertebral Artery
  4. PICA
  5. Medullary branch of Basilar
19
Q

Artery involved in the Medial Medullary Syndrome

A

Anterior Spinal Artery

20
Q

Artery involved in the Lateral Medullary Syndrome

A

Vertebral > PICA

21
Q

Blood supply of Pons is supplied by

A
  1. AICA
  2. Pontine Branch of Basilar
  3. Superior Cerebellar Artery
22
Q

Cerebellum is supplied only by Basilar Artery.

True/False

A

False

Cerebellum is supplied by branches from Vertebral and Basilar Arteries

23
Q

Cerebellum is supplied by

A
  1. Superior Cerebellar Artery ← Basilar Artery
  2. AICA ← Basilar Artery
  3. PICA ← Vertebral Artery
24
Q

Midbrain is Supplied by

A
  1. Posterior cerebral artery
  2. Basilar artery
  3. Superior Cerebellar artery
25
Q

Largest branch of ICA is

A

Middle Cerebral Artery

Is not involved in the Circle of Willis

26
Q

Aneurysm in the anterior communicating artery compresses the

Clinical feature;

A

Optic chiasma → Bitemporal Hemianopia

27
Q

Aneurysm in the Posterior Communicating artery compresses the

Clinical feature;

A

3rd Cranial Nerve

P - ptsosis

P D - pupil dilated

p D O - down and out pupils

28
Q

Middle cerebral artery passes in

And supplies which surface of brain?

A

In the lateral sulcus

Supplies Lateral Surface of the brain

29
Q

MCA Supplies which part of Visual Cortex

A

Mucula of Visual Cortex

30
Q

Lesion in the PCA leads to

A

Contralateral Homonymous Hemianopia

with Macular Sparing

31
Q

Blood supply of Optic Chiasma

A

ACA and ICA

32
Q

Optic Tract is supplied by

A

Anterior Communicating Artery

Anterior Choroidal Artery

33
Q

Optic Radiation is supplied by

A

PCA and MCA

Neuroanatomy (9 decks)

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