ATI RN
Lymphatic System Test Questions Questions
Question 1 of 5
Which of the following explains why immunity to influenza may appear to be relatively short-lived?
Correct Answer: D
Rationale: New influenza variants (antigenic drift/shift) escape prior immunity, requiring updated responses.
Question 2 of 5
Which of the following would be a BCR?
Correct Answer: D
Rationale: IgD is a B-cell receptor; CD4 is on T cells, MHC (B, C) presents.
Question 3 of 5
Which of the following is not a function of the spleen?
Correct Answer: A
Rationale: The spleen filters blood and stores platelets but does not mature T or B cells (thymus and bone marrow roles).
Question 4 of 5
Following a primary immune response, plasma cells give rise to
Correct Answer: B
Rationale: Plasma cells produce antibodies, while some B cells become memory cells post-response.
Question 5 of 5
The phenomena that initiates when a helper T cell binds with a class II MHC protein on a displaying cell is referred to as
Correct Answer: B
Rationale: Costimulation occurs when helper T cells bind MHC-II, enhancing activation.