会厌
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(会(huì )厌(yàn ),会(huì )厌(yàn ))
喉(hóu )头(tóu )上(shàng )前(qián )部(bù )的(de )树(shù )叶(yè )状(zhuàng )的(de )结(jié )构(gòu ),由(yóu )会(huì )厌(yàn )软(ruǎn )骨(gǔ )和(hé )黏(nián )膜(mó )组(zǔ )成(chéng )。呼(hū )吸(xī )或(huò )说(shuō )话(huà )时(shí ),会(huì )厌(yàn )向(xiàng )上(shàng ),使(shǐ )喉(hóu )腔(qiāng )开(kāi )放(fàng );饮(yǐn )食(shí )时(shí ),会(huì )厌(yàn )向(xiàng )下(xià ),盖(gài )住(zhù )气(qì )管(guǎn ),使(shǐ )水(shuǐ )或(huò )食(shí )物(wù )不(bú )至(zhì )于(yú )进(jìn )入(rù )气(qì )管(guǎn )内(nèi )。
《史(shǐ )记(jì )·扁(biǎn )鹊(què )仓(cāng )公(gōng )列(liè )传(chuán )》:“齿(chǐ )已(yǐ )后(hòu )至(zhì )会(huì )厌(yàn ),深(shēn )三(sān )寸(cùn )半(bàn ),大(dà )容(róng )五(wǔ )合(hé )也(yě )。”
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