uipp:108度73指上腭平面 上中切牙长轴交角;pp平面,pns ans之间连线
ek bio4: nervous system
structure of the nervous system
the human nervous system. blue is pns while red is cns.
ans中控制排尿的系统包括副交感神经系统(pns)和交感神经系统(sns).
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