ATI RN
Immune System Exam Questions Questions
Question 1 of 5
The right lymphatic duct empties into which vein?
Correct Answer: A
Rationale: The right lymphatic duct empties into the right subclavian vein ; left subclavian is for thoracic duct, others (C, D) are indirect.
Question 2 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 3 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 4 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 5 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.