ATI RN
Lymphatic System Questions and Answers PDF Questions
Question 1 of 5
T cells
Correct Answer: D
Rationale: γδ T cells recognize lipids without presentation; T cells need presented antigen , TCR is αβ or γδ , and CD8 binds MHC I .
Question 2 of 5
Lymphocytes acquire their antigen specificity:
Correct Answer: B
Rationale: Specificity forms pre-antigen in bone marrow/thymus; not post-circulation , antigen-driven , or self .
Question 3 of 5
Lymphatic capillaries are more permeable than blood capillaries due to:
Correct Answer: B
Rationale: Overlapping endothelial cells allow greater permeability in lymphatic capillaries; they have thinner walls , looser junctions , and no smooth muscle .
Question 4 of 5
The lymphatic system lacks which feature found in the circulatory system?
Correct Answer: A
Rationale: It lacks a central pump like the heart; it has vessels , capillaries , and valves .
Question 5 of 5
Which cells in the spleen's red pulp phagocytose old RBCs?
Correct Answer: B
Rationale: Macrophages in red pulp phagocytose RBCs; lymphocytes , T , and B cells are in white pulp.