ATI RN
Lymphatic and Immune System Test Questions Questions
Question 1 of 5
The structure of the larger lymphatic vessels is similar to the structure of cardiovascular
Correct Answer: C
Rationale: Lymphatic vessels resemble veins with valves and thin walls.
Question 2 of 5
Maternal antibodies crossing the placenta to the fetus is an example of:
Correct Answer: D
Rationale: Maternal antibodies provide natural passive immunity to the fetus.
Question 3 of 5
The body's first line of defense against the invasion of disease-causing microorganisms is:
Correct Answer: C
Rationale: Skin and mucous membranes are the first physical barriers; phagocytes , NK cells , inflammation , and fever act later.
Question 4 of 5
Antigen sequestration is
Correct Answer: C
Rationale: Sequestration isolates antigens (e.g., brain); not phagocytosis , lymphocyte removal , or Peyer's .
Question 5 of 5
Polymorphonuclear granulocytes include:
Correct Answer: C
Rationale: Neutrophils are PMNs; B-cells and T-cells are lymphocytes, endothelial are structural.