T-lymphocytes in the thymus gland do not participate in the immune response and are protected from antigens by
A)the blood-thymus barrier.
B)thymic macrophages.
C)the low pH of the thymus gland.
D)circulating B-lymphocytes.
E)trabecular fibers.

Question

Quizplus · Accepted Answer

T-lymphocytes in the thymus gland are protected from antigens by the blood-thymus barrier, which is a layer of cells that prevent the entry of harmful substances and pathogens. This allows the T-lymphocytes to develop and mature without being exposed to antigens that could damage or destroy them. Thymic macrophages, the low pH of the thymus gland, circulating B-lymphocytes, and trabecular fibers do not provide protection specifically for T-lymphocytes in the thymus gland.

T-Lymphocytes in the Thymus Gland Do Not Participate in the Immune