19. Innate Immunity

What does the word 'complement' mean in the name complement system?

Which of the following are results of activation of the complement system?

1. Removal or destruction of microbes.              2. Inflammation.                  3. Production of antibodies.

If the complement proteins are always present in the body, then why are the results of the complement system not always occurring?

Place the steps of the complement system in the correct order (Order steps 1-3).

_____ Opsonization, cell lysis of microbes, or inflammation occurs.

_____ C3 convertase splits C3 into C3a and C3b.

_____ C3a and C3b recruit other complement proteins to create an immune response.

How do the three pathways of the complement system differ?

The possible effects of the lectin pathway of the complement system are?

The complement system involves:

a. The production of antigens and antibodies

b. Serum proteins involved in nonspecific defense

c. A set of genes that distinguish foreign cells from body cells

d. The elimination of undigested remnants of microorganisms