Question 1
Which of the following would NOT be an action of the complement system?
◦ lysis of a pathogen's membrane
◦ trapping of pathogens in tangled protein threads
◦ marking of pathogens for destruction by macrophages
◦ attraction of phagocytes to the scene of pathogen invasion
◦ membrane attack complexes
Question 2
Which structure(s) is(are) NOT included in the lymphatic system?
◦ lymph nodes
◦ the spleen
◦ the thymus
◦ tonsils
◦ the thyroid