| 释义 |
blood-thymus barrier blood-thymus barriera sheath of pericytes and epithelial reticular cells around thymic capillaries that prevents the developing T lymphocytes of the cortex of the thymus from being exposed to circulating antigens.blood-thy·mus bar·ri·er (blŭd-thī'mŭs bar'ē-ĕr) A sheath of pericytes and epithelial reticular cells around thymic capillaries that prevents the developing T lymphocytes of the thymus from being exposed to circulating antigens. |