Exam (elaborations)
Tissue Perfusion Questions and Answers 2024
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Exam of 1 pages for the course Perfusion at Perfusion (Tissue Perfusion)
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Tissue PerfusionWhy is tissue perfusion tightly regulated? - answer Because it involves blood flow going
to tissues
When the tissues of the heart is in systole, is perfusion decreased or increased? -
answer Decreased
In diastole? - answer Increased
Why does perfusion of the heart increase during exercise? - answer Because of low
levels of oxygen
Which causes what? - answer Vasodilation
Blood flow to the brain is maintained nearly...... - answer700 mL/min
But, perfusion to the brain varies with..... - answer Activity
Blood flow to skeletal muscle ________ during exercise. (Also called ______) -
answerIncreases (hyperemia)
Perfusion to the skin is regulated by....... - answerThe SNS
Tissues Perfusion is controlled by...... - answerArterial BP
Autoregulatiopn
What are examples of auto regulation? - answerMyogenic mechanisms
Metabolic controls
Describe myogenic mechanisms. - answerAlter arteriolar resistance
Describe metabolic controls. - answerControlled by chemicals present in IF surrounding
capillaries
How much CO does the heart get? - answer5%
How much CO does the brain get? - answer15%
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