The sinuses within lymph nodes
A) surround clumps of lymphoid tissue called white pulp.
B) contain macrophages living along a reticular fiber network.
C) are separated from the bloodstream by a blood-node barrier.
D) consist of star-shaped epithelial cells that secrete immune-boosting hormones.

Question

Quizplus · Accepted Answer

The sinuses within lymph nodes contain macrophages that reside along a network of reticular fibers, which help filter lymph and capture pathogens.

The Sinuses Within Lymph Nodes