ATI RN
Lymphatic and Immune System Test Questions Questions
Question 1 of 5
The most abundant type of leukocyte in human peripheral blood is:
Correct Answer: C
Rationale: Neutrophils are the most abundant leukocytes (~50-70%) in blood, key for bacterial defense.
Question 2 of 5
MHC I molecules present
Correct Answer: A
Rationale: MHC I presents proteasome-derived peptides; phagolysosomes are MHC II.
Question 3 of 5
The thoracic lymphatic duct empties into the
Correct Answer: C
Rationale: The thoracic duct drains lymph into the left subclavian vein, returning it to the bloodstream.
Question 4 of 5
The process of coating a microbe with antibodies to make it more susceptible to phagocytosis is
Correct Answer: B
Rationale: Opsonization enhances phagocytosis by coating microbes with antibodies.
Question 5 of 5
The type of resistance that is acquired as a result of developing and recovering from a disease is
Correct Answer: A
Rationale: Recovery from disease yields naturally acquired active immunity with memory.