以下关于免疫系统的说法正确的是( ) A.各种免疫器官都能产生

以下关于免疫系统的说法正确的是(  )

A.各种免疫器官都能产生免疫细胞

BT细胞和B细胞都来自骨髓造血干细胞

C.免疫活性物质都是由T细胞或B细胞产生的

D.免疫活性物质主要包括抗体、淋巴细胞、溶酶体等

答案

解:A、扁桃体、脾脏等不产生免疫细胞,A错误;

BT细胞和B细胞都来自骨髓造血干细胞,T细胞在胸腺中成熟,B细胞在骨髓中成熟,B正确;

C、抗体由免疫细胞浆细胞产生,淋巴因子由T细胞产生,溶菌酶可以由免疫细胞产生,也可以由其他细胞产生,如唾液腺细胞,C错误;

D、免疫活性物质主要包括抗体、淋巴因子、溶酶体等,D错误.

故选:B

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