ATI RN
Immune System Exam Questions Questions
Question 1 of 5
is inflammation in lymph vessel, seen as red lines on skin
Correct Answer: B
Rationale: Lymphangitis is inflammation of lymph vessels, appearing as red lines; lymphadenitis is lymph node inflammation, lymphedema is swelling.
Question 2 of 5
All Characters of thymus parenchyma except
Correct Answer: C
Rationale: Thymus has a dark cortex , pale medulla with Hassall's corpuscles (B, D); white/red pulp is spleen-specific (C is incorrect).
Question 3 of 5
Which of the following statements is correct about splenic sinusoids?
Correct Answer: B
Rationale: Splenic sinusoids are lined with elongated endothelial cells with large spaces ; Kupffer cells are in liver , stave cells line sinusoids (C is misphrased), basement membranes are discontinuous .
Question 4 of 5
An important effector function of antibodies is opsonization. Opsonized antigen can bind to Fc receptors on for instance macrophages. Which part of the antibody binds to the Fc receptor?
Correct Answer: C
Rationale: The Fc region (tail of heavy chains, C) binds Fc receptors on macrophages; Fab and antigen-binding parts bind antigens.
Question 5 of 5
What is the function of TAP1 and TAP2 proteins?
Correct Answer: B
Rationale: TAP1/2 transport cytosolic peptides into the ER for MHC I loading ; invariant chain and CLIP are MHC II-related.