Hyperemia and Congestion Quiz

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Questions and Answers

What is the main cause of acute local venous congestion?

Pressure from outside
Liver cirrhosis or fibrosis
Sudden complete venous obstruction (correct)
Rupture of veins and capillaries

What effects are associated with chronic local venous congestion?

Pressure from outside resulting in mechanical obstruction
Obstruction of veins leading to hypoxia
Increase in venous blood due to obstruction of venous outflow
Edema (correct)

What is the main characteristic of hyperemia?

Active dilatation of the arterioles & capillaries in response to metabolic activity (correct)
Rupture of veins and capillaries
Chronic dilatation of the veins, venules, and capillaries proximal to the obstruction
Increase in venous blood in an organ as a result of obstruction of venous outflow

In which condition does acute local venous congestion result in edema and tissue hypoxia?

<p>Sudden complete venous obstruction (D)</p> Signup and view all the answers

What is the difference between hyperemia and congestion?

<p>Hyperemia is an active response to metabolic activity, while congestion is a passive increase in venous blood due to obstruction. (D)</p> Signup and view all the answers

Flashcards

Acute Venous Congestion Cause

Sudden complete blockage of a vein.

Chronic Venous Congestion Effect

Swelling (edema) of the affected area.

Hyperemia Cause

Increased blood flow due to active dilation of blood vessels in response to metabolic demand.

Acute Venous Congestion and Edema

Obstruction leads to fluid buildup and oxygen deficiency in tissues because blood isn't flowing out.