The blood-thymus barrier is made up of
A) immature T cells.
B) mature T cells.
C) macrophages.
D) plasma cells.
E) epithelial reticular cells.

Question

Quizplus · Accepted Answer

The blood-thymus barrier is made up of epithelial reticular cells, which create a physical barrier between developing T cells and the bloodstream. This barrier helps to protect the T cells from potentially harmful substances in the blood until they have matured and are ready to enter circulation.

The Blood-Thymus Barrier Is Made Up of