ATI RN
Questions on Immune System Questions
Question 1 of 5
Interferons:
Correct Answer: D
Rationale: Interferons induce antiviral enzymes in target cells, not specific to viruses or limited to five families.
Question 2 of 5
Complement and antibody are similar in that both:
Correct Answer: B
Rationale: Both enhance phagocytosis (opsonization); not mast cell-derived or binding sites .
Question 3 of 5
A patient is bitten by a dog with confirmed rabies infection. After treating the bite wound, the physician injects the patient with antibodies that are specific for the rabies virus to prevent the development of an active infection. This is an example of:
Correct Answer: D
Rationale: Antibody injection is artificial passive; not active (A, B) or natural .
Question 4 of 5
Which person most likely has the largest thymus gland?
Correct Answer: B
Rationale: The thymus is largest and most active in early childhood (e.g., age 2), shrinking after puberty.
Question 5 of 5
An antigen is __________, whereas an antibody is___________.
Correct Answer: A
Rationale: Antigens are foreign substances eliciting responses; antibodies are proteins neutralizing them.