ATI RN
Immune System Practice Questions Questions
Question 1 of 5
What is the primary source of lymph fluid?
Correct Answer: A
Rationale: Capillary filtration produces lymph; sweat , secretions , and marrow don't.
Question 2 of 5
The thymus is derived from which embryonic structure?
Correct Answer: A
Rationale: The thymus comes from pharyngeal pouches; neural crest , mesoderm , and ectoderm form other structures.
Question 3 of 5
Which cells are responsible for cell-mediated immunity?
Correct Answer: B
Rationale: T cells mediate cellular immunity; B cells produce antibodies, macrophages and neutrophils are innate.
Question 4 of 5
Which cells are key to the secondary immune response?
Correct Answer: A
Rationale: Memory cells drive faster secondary responses; neutrophils , macrophages , and dendritic are initial responders.
Question 5 of 5
Which cytokine promotes fever?
Correct Answer: A
Rationale: IL-1 induces fever; IL-2 boosts T cells, IL-4 aids B cells, IL-10 suppresses.