如果你有空对着镜子,张大嘴巴往里瞧,嘿——舌头、牙齿和咽喉,还挺复杂哩!如果你再仔细观察一下,居住在口腔里而肉乎乎的三兄弟,它们的作用可不简单!你想知道吗? 大哥哥扁桃体是“小哨兵” 在咽喉的两侧有一个凹陷的窝,里面住着椭圆形的扁桃体。别看这两个大哥哥像小核桃似的,缩在 If you are free to look in the mirror, open your mouth and look inside, hey - tongue, teeth and throat, pretty complicated! If you look closely, the three brothers, who live in the mouth and are fleshly, their role Not easy! Do you want to know? Big brother tonsil is “small sentry ” There is a concave nest in the throat on both sides, which live oval-shaped tonsils. Do not look like two big brother like a small walnut, shrink in