ATI RN
Lymphatic System Exam Questions Questions
Question 1 of 5
Compared to the secondary antibody response, the primary response
Correct Answer: B
Rationale: The primary response has a longer lag phase (days) before antibody production, unlike the faster, stronger secondary response.
Question 2 of 5
Activated helper T cells release regulatory molecules called
Correct Answer: D
Rationale: Helper T cells release lymphokines like cytokines; not histamines or antibodies .
Question 3 of 5
What is a superantigen?
Correct Answer: D
Rationale: Superantigens nonspecifically overactivate T cells; not specific or enhancing .
Question 4 of 5
The lymph nodes of the axillary region receive lymph mainly from the
Correct Answer: B
Rationale: Axillary lymph nodes drain the arm and mammary gland, not the scalp or viscera.
Question 5 of 5
Which of the following possess Class II MHC antigens?
Correct Answer: A
Rationale: Antigen-presenting cells (e.g., macrophages) express MHC-II, not erythrocytes or muscle cells.