ATI RN
Immune System Questions Questions
Question 1 of 4
Which antibody class is correctly matched with where it is found?
Correct Answer: C
Rationale: IgA is found in secretions like milk and saliva.
Question 2 of 4
Regarding the proportion of circulating lymphocytes
Correct Answer: B
Rationale: T cells are 60-70% ; B cells are 10-20% , neutrophils are not lymphocytes , and plasma cells are rare .
Question 3 of 4
The part of an antigen that is recognized by an antibody or T cell receptor:
Correct Answer: C
Rationale: Epitope is the recognized antigen part; allotype is allelic variation, idiotype is antibody uniqueness, isotype is class, and agretype is not a term.
Question 4 of 4
Early development of the immune system results in non-responsiveness to our own self proteins thereby abrogating the initiation of autoimmune disease. However, this is not always absolute and a secondary mechanism may be needed. This type of tolerance is called:
Correct Answer: C
Rationale: Peripheral tolerance is secondary; central is early, surveillance is monitoring, and immunodeficiency is loss.