ATI RN
Immune System Questions Questions
Question 1 of 5
Lymph is filtered by the:
Correct Answer: C
Rationale: Lymph nodes filter lymph, removing pathogens.
Question 2 of 5
Tissue rejection is due to the action of
Correct Answer: A
Rationale: Cytotoxic T cells attack foreign tissue in rejection.
Question 3 of 5
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 4 of 5
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 5 of 5
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.