The Complement System Song: How The Complement System Works

The video tutorial explains the complement system, a series of proteins in the blood that help defend against pathogens. It covers the conversion of C2 and C4 into C3, the roles of C3A and C3B in immune response, and the formation of the membrane attack complex (MAC) through the splitting of C5. Additionally, it discusses an alternate pathway that begins with C3 binding directly to pathogens. The tutorial emphasizes the importance of these processes in the body's defense mechanism.

Describe the cascade of events that the complement system initiates.

What is the role of C3A in the complement system?

What happens when C3B attaches to a pathogen?

How does C5 contribute to the complement system's function?

Explain the alternate pathway of the complement system.