Acute Inflammation Lecture: Vascular and Cellular Events
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Questions and Answers

During acute inflammation, vasodilation is induced by the action of several mediators, notably histamine.

True

The result of increased blood flow during acute inflammation is the cause of heat and redness (erythema).

True

Leukocytes, principally neutrophils, accumulate along the endothelial lining in a process known as margination.

True

During acute inflammation, RBCs become more effectively concentrated due to the exudation of protein-rich fluid into the extravascular tissue.

<p>True</p> Signup and view all the answers

Brief arteriolar vasoconstriction is followed by vasodilation during acute inflammation.

<p>True</p> Signup and view all the answers

Increased vascular permeability in acute inflammation is primarily due to the contraction and retraction of endothelial cells.

<p>True</p> Signup and view all the answers

Endothelial injury in severe injuries, such as thermal burns, may lead to increased vascular permeability.

<p>True</p> Signup and view all the answers

Histamine, kinins, and other mediators can induce increased vascular permeability by producing gaps between endothelial cells.

<p>True</p> Signup and view all the answers

Increased vascular permeability in early inflammation is primarily due to decreased intravascular hydrostatic pressure.

<p>False</p> Signup and view all the answers

Lymphatic vessels and lymph nodes are not involved in acute inflammation and do not show redness or swelling.

<p>False</p> Signup and view all the answers

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