10 Questions
Which of the following factors is the most important determinant of whether vascular occlusion will cause damage?
The nature of the vascular supply
Which of the following tissues is the most resistant to infarction?
All of the above
What is the primary reason that slowly developing occlusions are less likely to cause infarction?
They allow time for the development of alternative perfusion pathways
How long can neurons withstand being deprived of their blood supply before undergoing irreversible damage?
3 to 4 minutes
Which of the following tissues is the most sensitive to ischemia?
Neurons
How long can myocardial cells withstand ischemia before dying?
20 to 30 minutes
Which type of vascular circulation is most susceptible to infarction?
End-arterial supply
What is the most important factor that determines whether vascular occlusion will cause death of a tissue?
The presence of an alternative blood supply
Which of the following is true about the effect of slowly developing occlusions?
They are less likely to cause infarction
Which of the following tissues has the highest susceptibility to hypoxia?
Neurons
Test your knowledge on the causes of turbulence and stasis in blood flow, including factors that prevent dilution of clotting factors, promote endothelial cell injury, and retard the inflow of clotting factor inhibitors. Explore scenarios like ulcerated atherosclerotic plaques, abnormal aortic dilations, myocardial infarction, and mitral valve stenosis.
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