ATI RN
Immune System Multiple Choice Questions Questions
Question 1 of 5
B Cells are activated by
Correct Answer: D
Rationale: Antigens bind to B cell receptors to activate them, unlike complement, antibodies, or interferon (which modulate responses).
Question 2 of 5
AIDS is such a deadly disease because the AIDS virus attacks and destroys
Correct Answer: A
Rationale: HIV targets CD4+ T cells , crippling immunity; CD8+ and macrophages are less primary targets.
Question 3 of 5
All of the following are part of our antigen specific defense mechanisms except:
Correct Answer: A
Rationale: Inflammation is nonspecific; lymphocytes and antibodies are specific.
Question 4 of 5
Which of the following Cytokines can increase the body temperature directly?
Correct Answer: C
Rationale: IL-6 induces fever; IL-2 and IL-8 don't directly.
Question 5 of 5
People that are confined to bed for long periods of time often develop edema because
Correct Answer: C
Rationale: Lack of muscle contraction impairs lymph flow, causing fluid buildup (edema) in interstitial spaces.