字幕列表 影片播放 列印英文字幕 Smart Learning for All What is earwax? It is a wax used to make candles. Not at all. Earwax is used to lubricate and protect our ear canal, middle ear and inner ear. But how does it form? Our ear canal consists of special glands. They produce an oily and waxy substance called cerumen. Cerumen moisturizes our ears. It traps dust and dead skin cells, keeping our ears clean. Besides this, cerumen also has antibacterial properties. When harmful microbes try to enter deeper into our ears, the cerumen traps and kills the microbes. These dead microbes, dust, oil and dead skin cells together form the earwax. For more educational videos please visit http://www.SmartLearningforAll.com Also, don't forget to subscribe to our YouTube channel.
B1 中級 美國腔 什麼是耳垢?| 耳垢是什麼? (What is Earwax? | #aumsum) 18 1 AumSum 發佈於 2021 年 01 月 14 日 更多分享 分享 收藏 回報 影片單字