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2. The mechanism of increased PaCO2 to stimulate respiratory center is mainly due to:

A、CO2directlystimulatesthecentralchemoreceptorinthemedullaoblongata;
B、CO2increasesH+concentrationincerebrospinalfluid,whichstimulatesthecentralchemoreceptorinthemedullaoblongata.;
C、H+stimulateschemoreceptorofthecarotidbody;
D、CO2stimulateschemoreceptorofthecarotidbody;
E、CO2stimulateschemoreceptoroftheaorticbody

发布时间：2025-11-30 20:40:04

推荐参考答案 ( 由题搜搜官方老师解答 )

答案：CO2 increases H+ concentration in cerebrospinal fluid, which stimulates the central chemoreceptor in the medulla oblongata.