ATI RN
Immune System Multiple Choice Questions Questions
Question 1 of 5
Which lymphatic vessel collects lymph from the upper right portion of the body, including the right arm, right side of the head, and right thorax?
Correct Answer: A
Rationale: The right jugular trunk drains the right head and neck.
Question 2 of 5
Non-specific defense mechanisms are effective against _________ type(s) of infectious agent(s) and specific defense mechanisms are effective against __________ type(s) of infectious agent(s).
Correct Answer: B
Rationale: Nonspecific defenses target many agents; specific target one.
Question 3 of 5
An antigen-antibody complex may
Correct Answer: D
Rationale: Antigen-antibody complexes can do all: activate complement, attract phagocytes, and neutralize toxins.
Question 4 of 5
Interferons are very special defence mechanisms which operate by:
Correct Answer: B
Rationale: Interferons bind neighboring cells, inducing antiviral states.
Question 5 of 5
Mast cells
Correct Answer: A
Rationale: Mast cells are bone marrow-derived; they drive type I , release PAF , and don't phagocytose .