ATI RN
Immune System Exam Questions Questions
Question 1 of 5
What is the primary function of the thymus?
Correct Answer: B
Rationale: The thymus matures T cells; it doesn't filter lymph , produce antibodies , or just store cells .
Question 2 of 5
The lymphatic system aids digestion by transporting:
Correct Answer: C
Rationale: It transports fats from the gut; carbs , proteins , and vitamins are mainly blood-transported.
Question 3 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 4 of 5
Which cells in the spleen's marginal zone trap blood-borne antigens?
Correct Answer: B
Rationale: Macrophages trap antigens; lymphocytes , T , and B cells respond.
Question 5 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.