ATI RN
Lymphatic System Practice Questions Questions
Question 1 of 5
What is the primary function of the immune system?
Correct Answer: B
Rationale: The immune system defends against pathogens; nutrient transport is circulatory, hormones are endocrine, temperature is hypothalamus.
Question 2 of 5
What is the role of MHC class II molecules?
Correct Answer: B
Rationale: MHC II presents to T-helper cells; MHC I is for cytotoxic, B cells use BCR, cytokines are separate.
Question 3 of 5
The thymus is derived from which embryonic structure?
Correct Answer: A
Rationale: The thymus comes from pharyngeal pouches; neural crest , mesoderm , and ectoderm form other structures.
Question 4 of 5
What is the role of T-cytotoxic cells?
Correct Answer: B
Rationale: T-cytotoxic cells kill infected cells; antibodies are B cells, activation is T-helper, phagocytosis is macrophages.
Question 5 of 5
With regard to the superficial cortex of the lymph node: It is part of a primary lymphatic organ.
Correct Answer: B
Rationale: Lymph nodes are secondary lymphatic organs; primary organs include thymus and bone marrow.