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[[资源推荐]] 肝的解剖学知识和消化功能

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发表于 2007-9-14 21:47:06 | 显示全部楼层 |阅读模式
Anatomy of the Liver

  he anterior surface of the liver is triangular in shape, made of two lobes. The right lobe is the larger of the two, measuring 6 to 7 inches in length. The left lobe is 3 inches in length.

  Ligaments connect the upper surface of the liver to the diaphragm and the abdominal wall and the under surface to the stomach and duodenum. The gall bladder is located on the under surface of the right lobe of the liver. Neighboring organs include the colon, the intestines, and the right kidney.

肝脏解剖学

  肝的前面是三角形,由两个叶组成。右叶较大,长6-7英寸。左叶长3英寸。

  肝的上面由韧带连接着膈肌和腹壁,下面连接着胃和十二指肠。胆囊位于肝右叶的下方。它的邻近器官是结肠、小肠和右肾。
Digestive Function of the Liver

  Sometimes referred to as the great chemical factory of the body, the liver creates, regulates, and stores a variety of substances used by the gastrointestinal system, and it serves a number of important digestive functions.

  The main digestive chemical synthesized by the liver is bile. During a meal, bile is secreted by liver cells and travels through the hepatic duct system into the small intestine where it is used to break down fat molecules.

  Between meals, bile is stored in the gall bladder. Bile further serves as a waste disposal system for toxins removed from the blood by the liver.

  The liver also plays a major role in the regulation of blood glucose (blood sugar)。 The liver synthesizes, dissolves, and stores amino acids, protein, and fat.It stores several important vitamins like B12 and Vitamin A. The liver also disposes of cellular waste and breaks down harmful substances, like alcohol.
 肝的消化功能

  由于机体是一个大的化学工厂,肝脏产生、调节和储存一系列物质用于胃肠道,它有许多重要的消化功能。

  肝进行消化的化学性物质是胆汁。就餐时,肝细胞分泌的胆汁通过肝管系统进入小肠,消化脂肪微粒。

  在两餐之间,胆汁被储存在胆囊。胆汁还用于肝从血液排除毒素废物。

  肝脏在调节血液葡萄糖(血糖)的作用中也起着非常重要的作用。肝脏合成、分解和储存氨基酸、蛋白质和脂肪。它储存一些重要的维生素,如B12和维生素A.肝也代谢细胞废物和分解有害物质,如酒精。
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