ATI RN
Good Questions About the Immune System Questions
Question 1 of 5
trabeculae divide spleen into
Correct Answer: A
Rationale: Spleen trabeculae divide it into irregular compartments, not regular or cortex/medulla like lymph nodes.
Question 2 of 5
Choose the correct statement about Billroth cords:
Correct Answer: B
Rationale: Billroth cords in spleen red pulp are infiltrated with blood and lymphoid cells ; they're not in lymph nodes or between follicles , and lack central arterioles .
Question 3 of 5
A Th17 immune response is characterized by infiltration of...?
Correct Answer: C
Rationale: Th17 responses recruit neutrophils to fight extracellular pathogens; monocytes and eosinophils are less characteristic.
Question 4 of 5
Which of the following is true about MHC II molecules?
Correct Answer: C
Rationale: MHC II binds longer peptides due to open ends ; HLA-D regions encode them , they're stable , and only on APCs .
Question 5 of 5
Which subset of Th cells produces cytokines that encourage the production of mucus in the intestine?
Correct Answer: B
Rationale: Th2 cells promote mucus production via IL-13 ; Th1 and Th17 target other responses, Th0 is uncommitted.