借助舌头,人将糊状食物移到口腔后部进入食道口。食管是长约10英寸的管道,它将食物从喉咙的后部运送到胃。食管处还有一小片膜瓣堵堵住气管,以确保食物流入正确的管道。这个特殊的膜瓣称为会厌。人咳嗽或噎住有时是由食物或饮料到了气管而不是食管引起的。食管的肌肉帮助食物进入胃。
The stomach, another part of the digestive system, is the next stop for the food. It has three responsibilities: First, it stores the food, then breaks it down into a liquid mixture, and finally, it slowly empties the mixture into the small intestine. Inside the stomach, there are gastric juices which help break down the food, as well as kill any bacteria that may be in the food.
胃,消化系统的另一部分,是食物到达的下一站。它有三个职责:首先,它存储食品,然后将其分解成液体混合物,最后,它慢慢让胃部所有的混合物进入小肠。胃的内部含有胃液,帮助分解食物,以及杀死食物中的细菌。
The next stop on the journey is the small intestine. The small intestine is located beneath the stomach, and if stretched out would be about 22 feet long. Its job is to break down the food some more, so that the body can absorb all of the vitamins, minerals, proteins, carbohydrates, and the fats found in food.
下一站是小肠。小肠是位于胃的下方,将其伸展开约22英尺长。它的工作是进一步是分解食品,让身体能吸收食物中所有的维生素,矿物质,蛋白质,碳水化合物,以及脂肪。
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