Podcast
Questions and Answers
Hyperemia is an active process in which ______ dilation leads to increased blood flow.
Hyperemia is an active process in which ______ dilation leads to increased blood flow.
arteriolar
Affected tissues turn red (erythema) because of increased delivery of ______ blood.
Affected tissues turn red (erythema) because of increased delivery of ______ blood.
oxygenated
Congestion is a passive process resulting from reduced venous outflow of blood from a ______.
Congestion is a passive process resulting from reduced venous outflow of blood from a ______.
tissue
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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Which of the following is an accurate description of hyperemia?
Which of the following is an accurate description of hyperemia?
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What is the underlying mechanism of congestion?
What is the underlying mechanism of congestion?
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What causes the abnormal blue-red color (cyanosis) in congested tissues?
What causes the abnormal blue-red color (cyanosis) in congested tissues?
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What can chronic passive congestion lead to?
What can chronic passive congestion lead to?
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What can capillary rupture in chronically congested tissues lead to?
What can capillary rupture in chronically congested tissues lead to?
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Study Notes
Hyperemia and Congestion
- Hyperemia is an active process involving arteriolar dilation, leading to increased blood flow.
- In hyperemia, affected tissues turn red (erythema) due to increased delivery of oxygenated blood.
- Congestion is a passive process resulting from reduced venous outflow of blood from a specific area.
- Congested tissues exhibit an abnormal blue-red color (cyanosis) due to the accumulation of reduced hemoglobin in the affected area.
- Long-standing chronic passive congestion can lead to ischemic tissue injury and scarring due to associated chronic hypoxia.
- Chronic passive congestion can cause capillary rupture, leading to hemorrhage and edema in affected tissues.
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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.
