PATHOLOGY

Detailed explanation-1: -When tissue is first injured, the small blood vessels in the damaged area constrict momentarily, a process called vasoconstriction. Following this transient event, which is believed to be of little importance to the inflammatory response, the blood vessels dilate (vasodilation), increasing blood flow into the area.

Detailed explanation-2: -1. Vasoconstriction. Vasoconstriction is the body’s first response to injury in the vascular wall. When an injury occurs, vessel walls constrict, causing reduced blood flow to the site of injury.

Detailed explanation-3: -Acute Inflammation Immediately following an injury, vasoconstriction of blood vessels will occur to minimize blood loss. The amount of vasoconstriction is related to the amount of vascular injury, but it is usually brief.

Detailed explanation-4: -Vasoconstriction is the narrowing (constriction) of blood vessels by small muscles in their walls. When blood vessels constrict, blood flow is slowed or blocked. Vasoconstriction may be slight or severe. It may result from disease, drugs, or psychological conditions.