ATI RN
ATI RN Test Bank
Lymphatic System Test Questions Questions
Question 1 of 5
The lymphatic system helps maintain fluid balance in the body by:
Correct Answer: A
Rationale: It moves excess fluid toward the bloodstream, not away from the heart.
Question 2 of 5
Thymosins are secreted by the _________ and aid in ___________.
Correct Answer: D
Rationale: Thymosins from the thymus aid T cell maturation.
Question 3 of 5
Identify the class of antibodies that cause allergies.
Correct Answer: C
Rationale: IgE triggers allergic responses via mast cells.
Question 4 of 5
The amount of antibody present in a blood plasma sample is a(n):
Correct Answer: C
Rationale: Titer measures antibody concentration in plasma.
Question 5 of 5
What receptor is present on the surface of all naïve B cells
Correct Answer: A
Rationale: Naïve B cells express IgM and IgD ; IgG (B, D) and IgA are post-activation.