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Nervous System > Blood Supply > Flashcards

Blood Supply Flashcards

1
Q

Beginning of the anterior circulation

A

Common carotid to internal carotid

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2
Q

Beginning of the posterior circulation

A

Subclavian to vertebral, converge to form basilar

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3
Q

Area supplied by the anterior cerebral artery

A

Centre of the brain (parietal and frontal)

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4
Q

Area supplied by the middle cerebral artery

A

Lateral brain (Parietal, Frontal, and Temporal)

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5
Q

Area supplied by the posterior cerebral artery

A

Posterior brain (Occipital and Temporal)

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6
Q

Arteries of the anterior circulation

A

Anterior cerebral and Middle cerebral

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7
Q

Arteries of the posterior circulation

A

Posterior cerebral, Superior cerebellar, Pontine, Anterior inferior cerebellar

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8
Q

Link between posterior and anterior circulation

A

Posterior communicating artery

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9
Q

Link between the anterior cerebral arteries

A

Anterior communicating artery

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10
Q

Area supplied by the anterior spinal artery

A

Anterior 2/3 of the spine

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11
Q

Area supplied by the posterior spinal arteries

A

Posterior 1/3 of the spine

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12
Q

Origin of the anterior spinal artery

A

Vertebral arteries

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13
Q

Origin of the posterior spinal arteries

A

Posterior communicating arteries

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14
Q

Vein running along the top of the brain

A

Superior saggital sinus

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15
Q

Vein running through the middle of the brain

A

Inferior saggital sinus

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16
Q

Convergence of the inferior and superior saggital sinuses

A

Confluence of sinuses

17
Q

Location of the confluence of sinuses

A

Base of the occipital bone

18
Q

Continuation of venous drainage from the confluence of sinuses

A

Transverse sinuses, Sigmoid sinuses, Internal juggular vein

19
Q

Causes of vasodilation of cerebral vessels

A

H and carbon dioxide, PNS, High BP

20
Q

Causes of vasoconstriction of cerebral vessels

A

Low BP, SNS

21
Q

Define cerebral perfusion pressure

A

Pressure forcing blood around the brain

22
Q

Range for cerebral perfusion pressure

A

50 - 80mmHg

Nervous System (21 decks)

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