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中等师范学校《生理卫生》课本(1983年3月版)第102页写道:“经消化的食物成分通过消化道壁进入血液循环的过程叫做吸收。”这段描述对于帮助初学者理解吸收的概念起着一定的积极作用,但在教学过程中发现此种描述还存在着几个值得商讨的问题。现谈一点看法,供大家参考。 (一) 关于人体能够吸收的物质一般地讲,人体能够吸收的物质较多,按其在食物中存在与否以及在消化道中消化吸收的情况,大致可分三种类型: 1.人体能够吸收经过消化的营养成分人体所需要的六种营养成分中的蛋白质、脂类和糖
The secondary normal school physical health textbook (March 1983 edition) p. 102 reads: “The digestive food ingredients through the digestive tract into the blood circulation is called absorption.” This description is to help beginners to understand the absorption Concept plays a positive role, but there are still several problems to be discussed during the teaching process. Now talk about the views for your reference. (A) of the human body to absorb substances Generally speaking, the human body to absorb more substances, according to their existence in the food and digestion and absorption in the digestive tract can be divided into three types: 1. The body can absorb Digested Nutrients The proteins, lipids and sugars in the six nutrients the body needs