ATI RN
Immune System Exam Questions Questions
Question 1 of 5
What is the primary mechanism of lymph propulsion?
Correct Answer: B
Rationale: Skeletal muscle movement propels lymph; heart and arteries move blood, gravity aids minimally.
Question 2 of 5
Which immunoglobulin is most abundant in blood?
Correct Answer: D
Rationale: IgG is the most abundant in blood; IgA is in secretions, IgD is on B cells, IgE is for allergies.
Question 3 of 5
Which cells are most abundant in lymph nodes?
Correct Answer: B
Rationale: Lymphocytes dominate lymph nodes; neutrophils are in blood, macrophages assist, eosinophils fight parasites.
Question 4 of 5
Which cells are elevated in parasitic infections?
Correct Answer: C
Rationale: Eosinophils rise in parasitic infections; neutrophils fight bacteria, lymphocytes are adaptive, macrophages are broad.
Question 5 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.