ATI RN
Questions on the Immune System Questions
Question 1 of 5
Which cytokine stimulates T cell proliferation?
Correct Answer: B
Rationale: IL-2 boosts T cell growth; IL-1 activates, IL-6 aids B cells, TNF-alpha inflames.
Question 2 of 5
Which cells are key to type II hypersensitivity?
Correct Answer: B
Rationale: B cells produce antibodies for type II; T cells are type IV, mast cells are type I, neutrophils are innate.
Question 3 of 5
Which organ is key to B cell activation?
Correct Answer: C
Rationale: Lymph nodes activate B cells; thymus matures T cells, spleen filters, marrow produces.
Question 4 of 5
With regard to the thymic medulla (ANAT2020 only): It is supported by a reticular framework.
Correct Answer: A
Rationale: The thymic medulla is supported by epithelioreticular cells forming a reticular framework.
Question 5 of 5
control lymph flow in one direction through Capillary
Correct Answer: D
Rationale: Bicuspid valves in lymphatic vessels ensure unidirectional lymph flow; tricuspid, aortic, and pulmonary valves are in the heart.