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Questions and Answers
Hyperemia is an active process in which arteriolar ______ leads to increased blood flow.
Hyperemia is an active process in which arteriolar ______ leads to increased blood flow.
dilation
Affected tissues turn ______ because of increased delivery of oxygenated blood.
Affected tissues turn ______ because of increased delivery of oxygenated blood.
red
Congestion is a passive process resulting from reduced venous ______ of blood from a tissue.
Congestion is a passive process resulting from reduced venous ______ of blood from a tissue.
outflow
Congested tissues have an abnormal blue-red color (cyanosis) that stems from the accumulation of ______ hemoglobin in the affected area.
Congested tissues have an abnormal blue-red color (cyanosis) that stems from the accumulation of ______ hemoglobin in the affected area.
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In long-standing chronic passive congestion, the associated chronic ______ may result in ischemic tissue injury and scarring.
In long-standing chronic passive congestion, the associated chronic ______ may result in ischemic tissue injury and scarring.
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What is the underlying mechanism of hyperemia?
What is the underlying mechanism of hyperemia?
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What is the color of congested tissues?
What is the color of congested tissues?
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What is the consequence of chronic passive congestion?
What is the consequence of chronic passive congestion?
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What causes the abnormal color in congested tissues?
What causes the abnormal color in congested tissues?
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What is the difference between hyperemia and congestion?
What is the difference between hyperemia and congestion?
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Study Notes
Hyperemia
- Active process with increased blood flow to tissue
- Increased arteriolar dilation
- Tissues appear red due to increased oxygenated blood delivery
Congestion
- Passive process with reduced venous outflow from tissue
- Tissues appear blue-red (cyanosis) due to accumulated deoxygenated hemoglobin
- Can lead to chronic hypoxia, ischemic tissue injury, and scarring
Differences between Hyperemia and Congestion
- Hyperemia is an active process, while congestion is a passive process
- Hyperemia results in an increased blood flow to tissue, while congestion is a result of the accumulation of blood in a tissue due to reduced venous outflow
- Hyperemia causes a reddening of the tissue, while congestion causes a blue-red discoloration (cyanosis)
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Description
Test your knowledge on hyperemia and congestion with this quiz! Learn about the differences in underlying mechanisms and consequences, and understand how these conditions affect tissues.
