ATI RN
Immune System Practice Questions Questions
Question 1 of 5
surface receive lymph from afferent vessel, while surface where vein. efferent vessel leave
Correct Answer: C
Rationale: Afferent vessels enter at the convex surface, efferent vessels and veins exit at the concave hilum of the lymph node.
Question 2 of 5
function of epithelial reticular cell
Correct Answer: D
Rationale: Epithelial reticular cells secrete hormones , form barriers , and nurse T-cells ; all apply.
Question 3 of 5
Choose the correct statement concerning the Malpighian corpuscle:
Correct Answer: D
Rationale: Malpighian corpuscle (white pulp) has a follicular zone with B-lymphocytes ; it's lymphoid, not epithelial , arteriole is central (B is misphrased), mitoses are in germinal centers .
Question 4 of 5
Lung tumors are not always the result of smoking and also occur in nonsmokers. In whom are these tumors found in particular?
Correct Answer: B
Rationale: Non-smoking-related lung tumors, like adenocarcinoma, are more common in women due to genetic and environmental factors.
Question 5 of 5
Why are MHC II molecules necessary for antigen presentation by APCs?
Correct Answer: D
Rationale: MHC II is essential as T cells recognize peptide-MHC complexes , it presents fragments , and pathogens are extracellular ; all apply .