Stroke Flashcards
Stroke is a ASCVD well ischemic stroke anyways
_________: a loss of blood flow to part of the brain, which damages brain tissue
Stroke
Strokes are caused by blood clots (____________) or broken blood vessels (________)in the brain
thromboembolism
hemorrhage
Ischemic stroke is ______
ASCVD
Thromboembolism caused by ______or post-MI ventricular embolism can travel out through the aorta
and may end up in any peripheral tissues
Afib
Brain is more susceptible to ischemic injury
Tissues supplied by ____________ are susceptible to ischemic injury and tissue necrosis
End arteries
Collateral arteries are connected at different places and even if there is a block you might still get some ischemic regions down here but as long as there is enough sufficient collateral arteries causing anastomosis there is no necrosis
Functional end arteries collateral artery might not be enough to supply enough blood and oxygen to ischemic area
Brain uses ______of the body’s oxgygen and glucose
despite being only 2% of the body weight
20%
Neurons fire action potentials
Neurons establish electrochemical gradients–>essential for firing action potentials It requires a lot of energy (_______)
ATP
Neurons fire action potentials. what for?
Neurotransmitter release
_________triggers neurotransmitter release
Calcium
Neurons utilizes ________to meet their energy demands
aerobic metabolism
