Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
21 Cards in this Set
- Front
- Back
Describe blood supply to brain
|
Aortic arch --> common carotid a. --> Internal and external carotid a. -->
Internal carotid goes to brain --> circle of willis --> vertebral a. --> Basilar a. --> circle of willis including anterior communicating a. |
|
Which supplies the scalp and superficial stuff of brain, internal or external carotid a?
|
external carotid a.
|
|
What does the middle cerebral a. supply?
|
Outer temporal lobe, parietal lobe, frontal lobe
|
|
What does the posterior cerebral a. supply?
|
Underside of temporal lobe, Occipital lobe
|
|
What does ant. cerebral supply blood to?
|
frontal cortex = executive functioning
|
|
Stroke in Wernicke's area means what?
|
can speak but can't understand
|
|
Stroke in Brocca's a. means what?
|
Can't speak but can understand
|
|
What are the two types of arterial stroke?
|
Hemorrhage and Infarction
|
|
What are the two types o f Arterial stroke hemorrhages?
|
Subarachnoid and Intraparenchymal
|
|
What are the two types of Arterial stroke Infarctions?
|
Large vs. Small vessel and Thrombotic vs. Embolic
|
|
What USUALLY causes a subarachnoid hemorrhage?
|
Aneurysm
|
|
What blood structure are MOST aneurysms near?
|
circle of willis
|
|
How do we manage aneurysms?
|
endovascular coiling (=coil around aneurysm) and surgical clipping
|
|
What are intraparenchymal hemorrhages most often associated with?
|
HTN OR arteriovenous malformation
|
|
Where do Charcot-bouchard aneurysms occur?
|
penetrating arteries ie arteries that penetrate deep into brain (dif from arteries near cicrle of willis = berry or saccular aneurysm)
|
|
Which aneurysm is more likely to bleed, berry or charcot-bouchard?
|
Berry (saccular)
|
|
What does a large vessel infarct look like on imaging?
|
large vessel = LARGE section or wedge shaped infarcted area
note it will be more wedge shaped than your typical arachnoid/subdural hemorrhage |
|
What does occlusion of small vessels cause (for ex occlusion of small penetrating artery)?
|
Lacunar infarction
|
|
What does a lucanar infarction look like on imaging?
|
A small dark spot
|
|
Whats the difference between embolus and thrombus?
|
Embolus = came from somewhere else
Thrombus = block occurs where the pathology is |
|
Where do half of all emboli come from?
|
a-fib = liquid blood becomes solid blood and embolizes
|