ATI RN
Questions on the Immune System Questions
Question 1 of 5
Natural killer cells
Correct Answer: C
Rationale: NK cells kill without sensitization; they are leukocytes , innate , and produce cytokines .
Question 2 of 5
The fact that she is a female may affect her disease in the following way:
Correct Answer: A
Rationale: Hormones may worsen autoimmunity in females; sex affects prevalence , not better or neutral .
Question 3 of 5
Which cells in lymph nodes engulf and destroy pathogens?
Correct Answer: A
Rationale: Macrophages phagocytose pathogens in lymph nodes; B and T cells are lymphocytes, and neutrophils are in blood.
Question 4 of 5
What drives lymph movement in the absence of a pump?
Correct Answer: B
Rationale: Respiratory movements aid lymph flow; blood pressure and arterial pulsation drive blood, venous flow is separate.
Question 5 of 5
What is the primary function of lymphatic valves?
Correct Answer: B
Rationale: Valves prevent lymph backflow; they don't increase pressure , filter , or produce lymph.