ATI RN
Immune System Multiple Choice Questions and Answers PDF Questions
Question 1 of 5
Which of the following statements is true about the Th-1 Cells?
Correct Answer: D
Rationale: Th1 don't bind soluble antigens, use MHC II; they express CD4 and activate macrophages .
Question 2 of 5
In specific immunity, competent T-cells are activated by
Correct Answer: D
Rationale: IL-1 from antigen-presenting cells activates T cells in specific immunity.
Question 3 of 5
Where are the tonsils, a part of the lymphatic system, located in the human body?
Correct Answer: A
Rationale: Tonsils are located in the throat, guarding against ingested/inhaled pathogens.
Question 4 of 5
The primary function of the lymphatic system in immune defense includes:
Correct Answer: A
Rationale: It supports antibody production via lymphocytes, not oxygen transport.
Question 5 of 5
Which of the following statements is true about the IgM of humans?
Correct Answer: D
Rationale: IgM is mainly in blood, not crossing the placenta or protecting mucosa (IgA role).