ATI RN
Immune System Questions Questions
Question 1 of 5
Which cells in lymph nodes engulf debris?
Correct Answer: B
Rationale: Macrophages engulf debris; lymphocytes , T , and B cells respond to antigens.
Question 2 of 5
Which cells are involved in humoral immunity?
Correct Answer: B
Rationale: B cells drive humoral immunity via antibodies; T cells are cellular, macrophages and dendritic are innate.
Question 3 of 5
Which cells are key to immune regulation?
Correct Answer: B
Rationale: T-regulatory cells regulate immunity; cytotoxic T kill, B cells make antibodies, macrophages phagocytose.
Question 4 of 5
Which organ traps gut pathogens?
Correct Answer: C
Rationale: Peyer's patches trap gut pathogens; spleen filters blood, thymus matures T cells, nodes filter lymph.
Question 5 of 5
Which cells are key to immune memory?
Correct Answer: B
Rationale: Memory lymphocytes provide immune memory; neutrophils , macrophages , and eosinophils are innate.