Which blood component is involved in the regulation of complement activation and helps to prevent excessive inflammation?

A C1 esterase inhibitor
B Factor H ✓
C CD59
D Properdin

Explanation

Factor H is a plasma protein that regulates complement activation by binding to C3b and preventing the formation of the C3 convertase, thereby helping to prevent excessive inflammation.

Source

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