ATI RN
Lymphatic System Practice Questions Questions
Question 1 of 5
Which of the following wander through the interstitial fluid and consume any bacteria and virus-infected cells they encounter?
Correct Answer: C
Rationale: Macrophages are phagocytic cells that patrol interstitial fluid, engulfing bacteria and infected cells, unlike erythrocytes (red blood cells), leukocytes (general white cells), or interferons (antiviral proteins).
Question 2 of 5
The first vaccination provides immunity because
Correct Answer: C
Rationale: Vaccines stimulate B cells with antigens, producing plasma cells (antibodies) and memory cells for immunity, not inflammation, pre-made antibodies, or antibiotics.
Question 3 of 5
Select a characteristic of the adaptive immune response.
Correct Answer: B
Rationale: Adaptive immunity takes days to develop specificity, unlike innate (PAMPs) or T cell antibody secretion (B cells).
Question 4 of 5
Complete the following sentence. A feature which does not describe patients presenting with x-linked hyper IgM syndrome is.
Correct Answer: C
Rationale: X-linked hyper IgM patients lack CD40L, preventing switching, so only IgM is produced, not normal levels of all isotypes.
Question 5 of 5
Granzymes induce apoptosis by which of the following downstream effector pathways?
Correct Answer: D
Rationale: Granzymes activate caspase 8, Bid, and mitochondrial pathways, all leading to apoptosis.