Answered

Which of the following is a step that occurs within an inflammatory response?

ALocal blood vessels near the wound close.
BWhite blood cells leave these tissues allowing the pathogen to thrive.
CFluid leaves the capillaries and causes swelling.
DHistamines decrease blood flow to the wound.

Verified Answer :

The right answer is C.

During inflammation, under the influence of chemical mediators, endothelial cells (forming the blood vessels) become activated. This leads to local arteriolar vasodilation then capillary2 which causes:

an increase in blood supply

a decrease in the speed of blood flow

This local swelling of the blood vessels causes redness and the sensation of heat. It aims to increase the flow of blood to evacuate dead cells and toxins (detox) and provide the elements necessary for healing, including white blood cells to fight against foreign bodies.