ATI RN
Immune System Exam Questions Questions
Question 1 of 5
Which cytokine promotes B cell differentiation?
Correct Answer: B
Rationale: IL-4 aids B cell differentiation; IL-2 boosts T cells, IL-6 supports, TNF-alpha inflames.
Question 2 of 5
Describe the histological structure and function of the thymus (ANAT2020 only).
Correct Answer: A
Rationale: The thymus is a primary lymphoid organ where T-cells mature through antigen-independent differentiation . It has a connective tissue capsule with trabeculae forming lobules , a cortex with densely packed thymocytes, and a medulla with Hassall's corpuscles (C, D), supported by epithelioreticular cells.
Question 3 of 5
is inflammation in lymph vessel, seen as red lines on skin
Correct Answer: B
Rationale: Lymphangitis is inflammation of lymph vessels, appearing as red lines; lymphadenitis is lymph node inflammation, lymphedema is swelling.
Question 4 of 5
round, or oval shape that formed of 4 zones + central arteriole
Correct Answer: D
Rationale: White pulp is round/oval, has four zones (including PALS), and a central arteriole.
Question 5 of 5
All Characters of thymus parenchyma except
Correct Answer: C
Rationale: Thymus has a dark cortex , pale medulla with Hassall's corpuscles (B, D); white/red pulp is spleen-specific (C is incorrect).