Which cells are stored in the spleen's white pulp?

Correct Answer: B

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

Correct Answer: C

Rationale: Peyer's patches are mucosal; spleen and nodes are systemic, thymus matures T cells.

Correct Answer: B

Rationale: Lacteals transport fats; spleen , thymus , and tonsils don't.

Correct Answer: C

Rationale: Macrophages engulf pathogens; antibodies are B cells, killing is T cells, histamine is mast cells.

Correct Answer: B

Rationale: The thymus shrinks post-puberty; it's active in infancy , persists in adulthood , and regresses further in old age .