ATI RN
Questions on Immune System Questions
Question 1 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 2 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 3 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 4 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.
Question 5 of 5
Which lymphatic organ plays a role in immune system development during early childhood but tends to decrease in size and function with age?
Correct Answer: C
Rationale: The thymus shrinks after childhood, reducing its role in T cell maturation.