ATI RN
Immune System Practice Questions Questions
Question 1 of 5
Precursors of macrophages are called
Correct Answer: D
Rationale: Monocytes differentiate into macrophages; T , B , and plasma cells are distinct.
Question 2 of 5
The Thymus independent type I antigen are _____________.
Correct Answer: D
Rationale: TI-1 antigens are polysaccharides; not nucleic acids (A, B) or proteins .
Question 3 of 5
The function of interferons is to
Correct Answer: D
Rationale: Interferons inhibit viral replication in cells, not bacteria or opsonization.
Question 4 of 5
Cytotoxic T-cells destroy their target cells by releasing a substance that affects
Correct Answer: A
Rationale: Cytotoxic T cells release perforins/granzymes, disrupting target cell membranes.
Question 5 of 5
How does lymph move through the lymphatic vessels?
Correct Answer: D
Rationale: Skeletal muscle contractions propel lymph, aided by valves.