CNS PATHOLOGY HIGH YIELD II Flashcards

1
Q

trauma to the brain can be caused by?

A

blows to the head
traumatic parenchymal injuries
traumatic vascular injury
sequelae of brain trauma-after effects

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2
Q

repetitive blows to head can cause?

A

alzheimers and chronic traumatic encephalopathy

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3
Q

what are the types of traumatic parenchymal injuries?

A

concussion
contussion
laceration
diffuse axonal injury

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4
Q

coup and contra coup are examples of what type of parenchymal injury?

A

contusion

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5
Q

what are the types of traumatic vascular injury?

A

epidural hematoma

subdural hematoma

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6
Q

epidural hematoma caused due to laceration of?

A

middle meningeal artery

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7
Q

subdural hematoma caused due to tearing of?

A

bridging veins

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8
Q

sequelae of brain trauma examples?

A

post traumatic dementia and hydrocephalus
epilepsy
psychiatric disorders
infectious disease

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9
Q

hypoxia/ischemia/infarction examples?

A

vascular disease
hypoxia
infarction

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10
Q

what do we consider about vascular disease?

A

15% of cardiac output and 20% of oxygen

autoregulation

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11
Q

categories of hypoxia?

A

functional hypoxia

ischemia

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12
Q

functional hypoxia is?

A

low inspired PO2

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13
Q

ischemia?
categorized?
types

A

decrease of tissue perfusion

transient
permanent

global cerebral ischemia
-severe hypotensive episode
focal cerebral ischemia
hemorrhage

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14
Q

these cell types are most sensitive to hypoxia?

A

neurons

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15
Q

global cerebral ischemia stages?

A

immediate
early
subacute
repair

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16
Q

neurons most susceptible to irreversible injury?

A

pyramidal cells
purkinje cells
pyramidal neurons

17
Q

decrease in oxygenated blood to brain can result from?

factors modifying the amount of parenchymal injury?

A

cardiac dysrhythmias
shock
increased intracranial pressure

age
temp
duration

18
Q

focal cerebral ischemia can be considered an infarction, T/F?

A

true

19
Q

what are the types of focal cerebral ischemia?

A

non hemorrhagic cerebral infarction

hemorrhagic cerebral infarction