ATI RN
Chapter 15 The Lymphatic System and Immunity Review Questions Questions
Question 1 of 5
A single antigen molecule may be composed of many individual ____________.
Correct Answer: D
Rationale: Antigens have multiple epitopes ; receptors (A, B) bind them.
Question 2 of 5
Which of the following is an example of a specific body defense mechanism?
Correct Answer: D
Rationale: Antibody production is specific (adaptive), unlike phagocytosis or inflammation (nonspecific).
Question 3 of 5
A vaccine produces its effects by
Correct Answer: C
Rationale: Vaccines stimulate a primary immune response, generating memory cells.
Question 4 of 5
Lymphatic vessels are important for maintaining fluid balance in the body by:
Correct Answer: A
Rationale: They return excess fluid to the bloodstream, preventing edema.
Question 5 of 5
Which lymphatic organ produces hormones known as thymosins, important for the development of T lymphocytes (T cells)?
Correct Answer: C
Rationale: The thymus produces thymosins for T cell development.