ATI RN
Lymphatic System Questions Questions
Question 1 of 5
Which of these statements correctly describe the function of CTLA-4
Correct Answer: B
Rationale: CTLA-4 on activated T cells binds B7 with higher affinity than CD28, inhibiting T cell activation.
Question 2 of 5
B cells that produce and release large amounts of antibodies are called:
Correct Answer: C
Rationale: Plasma cells secrete antibodies; memory cells persist, basophils release histamine.
Question 3 of 5
Which of the following produces monoclonal antibodies?
Correct Answer: C
Rationale: Hybridoma technology produces monoclonal antibodies; not fermentation or PCR .
Question 4 of 5
Somatically generated receptors found on B and T lymphocytes are
Correct Answer: D
Rationale: Bone marrow-derived and thymus-derived (T) lymphocytes somatically generate receptors during development. Unlike natural killer cells, B cells and T cells are unable to assess the quantity of MHC class I molecules on nucleated cells. Unlike innate immune system receptors, B- and T-lymphocyte somatic receptors are randomly generated and vary greatly between individuals. B- and T-lymphocytes receptors are formed prior to antigen stimulation.
Question 5 of 5
Which of the following is useful to STIMULATE antibody production?
Correct Answer: A
Rationale: An adjuvant enhances immune responses to antigens, unlike haptens (need carriers) or antiserum (contains antibodies).