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英语 词库 | |||
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A type of lymphocyte. There are two major types of T lymphocytes: CD8 cells cytotoxic T lymphocytes and CD4 cells helper T lymphocytes; both T cell types are essential for a healthy immune system. HIV infects and destroys CD4 cells, gradually destroying the immune system. 亦见 CD4 T lymphocyte, CD8 T lymphocyte, lymphocyte |
T: 38 短语, 3 学科 |
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数学 | 31 |
统计数据 | 6 |