| 释义 |
会厌huìyàn喉头上前部的树叶状的结构,由会厌软骨和黏膜构成。呼吸或说话时,会厌向上,使喉腔开放;咽东西时,会厌向下,盖住气管,使东西不至进入气管内。{epiglottis; leaf-shaped structure at the upper front part of the throat, consisting of cartilage and mucous membrane. When breathing or speaking, the epiglottis rises to let the windpipe open, and, during swallowing, drops to cover the glottis and prevent food from entering the trachea.} |