The spleen's white pulp contains which immune cells?

Correct Answer: B

Rationale: White pulp has lymphocytes ; red pulp has RBCs , platelets , and some neutrophils .

Correct Answer: A

Rationale: Secondary lymphatic nodules predominantly contain lymphocytes, especially B-cells.

Correct Answer: A

Rationale: Primary follicles lack germinal centers and are rich in B-lymphocytes, with few T-lymphocytes.

Correct Answer: C

Rationale: PALS is the thymus-dependent zone in the spleen, rich in T-lymphocytes.

Correct Answer: C

Rationale: Blood-thymic barrier has continuous endothelium and thick basement , protects immature T-cells ; T-lymphocytes are in both cortex and medulla, but immature are in cortex (C is incorrect).