Which of the following plasma proteins is responsible for inhibiting the activation of complement system, thereby preventing excessive inflammation and tissue damage?

A C1-inhibitor ✓
B Factor H
C Factor I
D Protein S

Explanation

C1-inhibitor is a plasma protein that inhibits the activation of the complement system, thereby preventing excessive inflammation and tissue damage.

Source

Janeway's Immunobiology
Hematology Hematology: Blood Components Hematology: Blood Components Hard MEDICAL Confidence: high