ATI RN
Lymphatic and Immune System Test Questions Questions
Question 1 of 5
Which of the following statements about lymphatic circulation is true?
Correct Answer: D
Rationale: Lymph flows through nodes, not spleen, which filters blood; no heart-like pump exists.
Question 2 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 3 of 5
Proteins produced by virus-infected cells that protect non-infected cells are:
Correct Answer: D
Rationale: Interferons protect uninfected cells from viral spread.
Question 4 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 5 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.