CNS PATHOLOGY HIGH YIELD II Flashcards
trauma to the brain can be caused by?
blows to the head
traumatic parenchymal injuries
traumatic vascular injury
sequelae of brain trauma-after effects
repetitive blows to head can cause?
alzheimers and chronic traumatic encephalopathy
what are the types of traumatic parenchymal injuries?
concussion
contussion
laceration
diffuse axonal injury
coup and contra coup are examples of what type of parenchymal injury?
contusion
what are the types of traumatic vascular injury?
epidural hematoma
subdural hematoma
epidural hematoma caused due to laceration of?
middle meningeal artery
subdural hematoma caused due to tearing of?
bridging veins
sequelae of brain trauma examples?
post traumatic dementia and hydrocephalus
epilepsy
psychiatric disorders
infectious disease
hypoxia/ischemia/infarction examples?
vascular disease
hypoxia
infarction
what do we consider about vascular disease?
15% of cardiac output and 20% of oxygen
autoregulation
categories of hypoxia?
functional hypoxia
ischemia
functional hypoxia is?
low inspired PO2
ischemia?
categorized?
types
decrease of tissue perfusion
transient
permanent
global cerebral ischemia
-severe hypotensive episode
focal cerebral ischemia
hemorrhage
these cell types are most sensitive to hypoxia?
neurons
global cerebral ischemia stages?
immediate
early
subacute
repair