ATI RN
Questions on Immune System Questions
Question 1 of 5
The inflammatory response includes all of the following except
Correct Answer: A
Rationale: Inflammation involves vasodilation , fever , and phagocytes ; constriction opposes increased flow.
Question 2 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 3 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 4 of 5
An antigen is __________, whereas an antibody is___________.
Correct Answer: A
Rationale: Antigens are foreign substances eliciting responses; antibodies are proteins neutralizing them.
Question 5 of 5
An immune response when provoked by a nonself particle is known as
Correct Answer: C
Rationale: An antigen is a nonself particle triggering an immune response.