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From Flashcardlet > Cerebral Blood Flow > Flashcards

Cerebral Blood Flow Flashcards

1
Q

Carotid

A
  • Off aorta L and Brciocephalic R
  • Plaqua at origin, MCA bifurcation, ACA turn
  • Opthamlic, Anterior Choroidal, ACA, MCA
  • Septal, Anterior BG, Frontal, Parietal, lateral temporal and occipital
  • Anyeruism in Cavernous Sinus can cause Horners because of loss of Postganglionic Sympathetics
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2
Q

Anterior Cerebral

A

Branch off Internal Carotid
Anterior communicating connects two sides
Medial and superior Fronatal and Parietal
Medial Striate are branches, artery of Huebner to Putamen and caudate

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3
Q

Anterior Cerebral Blockage

A

-Leg, foot, urinary bladder motor and sensory
-Septal Area (Pleasure zone, part of limbic)
Anterior BG
-Some motor planning anterior to precentral gyrus
-Corpus Collosum
-Putamen and Caudate via medial striate via artery of huebner

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4
Q

Middle Cerebral Artery

A
  • Begins as stem giving off lenticulostriate before branching into superior and inferior branchces
  • Common site of embolism and thrombus
  • Motor and sensory to Face and Arms (superior branch) as well as parts of corticospinal and corticobulbar
  • Speech
  • Emotions
  • 3D perception
  • Optic Radiations
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5
Q

MCA Stem

A
  • Gives off lenticulostriate arteries that are susceptible to HTN through hemorrhage or occlusion
  • LS are end arteries that supple BG (Putamen and Caudate) and Internal Capsule
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6
Q

Superior MCA (suprasylvian)

A
  • Motor and sensory for Face and arms
  • Broccas Area dominant side (speech motor)
  • Frontal Eye fields (saccadic and pursuit)
  • Emotions on non-dominant side
  • 3D perceptions
  • Corticobulbar and corticospinal tracts
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7
Q

Inferior MCA

A
  • Wernikces area on dominant side (speech sensory)
  • Emotions on non-dominant side
  • 3D perceptions
  • Optic radiations, especially superior quadrant on collateral side
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8
Q

Vertebral/Basilar

A
  • Supply:
  • Upper Cervical Cord
  • Brainstem and Cerebellum
  • Thalamus and Hypothalamus
  • Posterior Parietal, Medial and posterior temporal/occipital
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9
Q

Anterior Spinal

A
  • Comes off Vertebral Arteries
  • Superior Cervical to Adamkewicz
  • Medial medulla (Pyramidal tracts and spinothalamic) P/T and Motor
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10
Q

Paramedial Branches

A
  • Many small branches off Basilar
  • Dorsal/lateral Pons
  • Reticular, Cardiovascular, Balance, Pain/Temp
  • Damage can cause coma and death.
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11
Q

PICA

A
  • Off Vertebral
  • Lateral Medulla and inferior cerebellum
  • Nucleus Ambiguus, 9,10, vestibular, spinal trigeminal, Spinothalamic
  • Horners
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12
Q

Posterior Spinal

A

-Off PICA

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13
Q

AICA

A
  • Off Basilar
  • Labarynthine (cochlea/vestibular)
  • Inferior Cerebellum
  • Vestibular, Facial
  • Horners
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14
Q

Superior Cerebellar

A
  • Off Basilar
  • Deep Nuclei of Cerebellum (dentate)
  • Spinothalamic
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15
Q

Posterior Cerebral

A
  • Off Basilar
  • Posterior CC, Medial and Posterior temporal and occipital
  • Optic Radiations and primary visual cortex
  • Hippocampus and Fornix (anterograde memory?)
  • Diencephalon, Common site of HTN and hemorrhage (Thalamus especially)
  • Midbrain, Reticular, 3rd nerve, Red nucleus ( motor coordination and rubrospinal tract)
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16
Q

Internal Capsule

A

-Anterior: Thalamic and intercerebral communicating fibers
-Genu: Corticobulbar
Posterior: Corticospinal and Sensory

17
Q

Wallenberg Syndrome

A
  • Occlusion of PICA or Vertebral
  • Lateral Medullary Syndrome
  • 9,10,11,12, vestibular, cerebellum, descending trigeminal (P/T) face,Horners
18
Q

Occlusion of Basilar pons

A
  • Veritcal Eye movements preserved but horizontal lost because of loss of PPRF and abducens in caudal pons
  • Locked in, paralysis below
  • Reticular formation preserved in midbrain/mid-pons allows for conciousness depending on how high up the lesion is. Can be preserved or can be lost.
19
Q

Surreal Pain

A
  • Loss of Thalamic structures can cause relay and recipricol inhibition to be impaired
  • Ocllusion of PCA
  • Causes all stimuli to be felt as pain
20
Q

3rd Nerve Palsy

A

Posterior Communicating Artery anyeurism

21
Q

Anterior Choroidal

A

-Posterior Limb of internal Capsule

From Flashcardlet (7 decks)

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