[名词解释] 盆膈(pelvicdiaphragm)

前庭大腺(majorvestibularglands) 直肠(rectum) 子宫(uterus) 感觉性共济失调最常受损在() ["A．脊髓丘脑束","B．额叶","C．小脑","D．脊髓侧索","E．脊髓后索"] 阴蒂(clitoris) 盆膈(pelvicdiaphragm)