When a person begins to eat food, the body's digestive system begins to work. The digestive system is the system of the body that is responsible for breaking down the food a person eats. The process of food being broken down is called digestion. Digestion allows the body to receive the nutrients and the energy from the food that is eaten. During digestion, all of the food a person eats is eventually turned into the building blocks and fuel a person needs.
当一个人开始进食,人体的消化系统便开始工作。消化系统是负责分解食物的生理系统。分解食物的方法被称为消化。消化使人体从进食的食物中获取营养和能量。在消化过程中,所有进食的食物最终转化成了人体需求的养料和能量。
The system actually begins to work when a person sees or smells the food. Saliva, or spit, begins to form in the mouth. When the food is eaten, the saliva will begin to break down the chemicals in the food making it mushy and easy to swallow.
当一个人看到或闻到食物,消化系统便开始运作。唾液开始在口腔中形成。当人体开始进食,唾液会分解食物使它呈糊状,容易吞咽。
With the help of a person's tongue the mushy food then moves to the back of the mouth into the opening of the esophagus. The esophagus is about a 10-inch pipe that moves the food from the back of the throat to the stomach. There is also a small flap blocking the windpipe to make sure the food goes down the correct tube. The special flap is called the epiglottis. If a person begins to cough or choke, it is sometimes caused by food or drink going down the windpipe instead of the esophagus. There are muscles in the esophagus that help push the food into the stomach.
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2020-09-15
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