duodenum

简明释义

英[ˌdjuːəˈdiːnəm]美[ˌduːəˈdiːnəm]

n. [解剖] 十二指肠

复 数 d u o d e n u m s 或 d u o d e n a

英英释义

单词用法

同义词

反义词

例句

1.Analyse the reviewing to the case of excising the skill of 24 cases of pancreas duodenum.

对24例胰十二指肠切除术的病例进行回顾性分析。

2.Bile is introduced into the duodenum by the bile duct.

胆汁是通过胆道进入十二指肠的。

3.Tissue, Total Protein, Human Fetal Normal, Duodenum.

组织，总蛋白，人正常胚胎，十二指肠。

4.The length and weight of duodenum varied inversely as the body weight.

十二指肠的长度、重量的增长与体重的增长呈负相关。

5.Duodenum is joined to the liver and to the pancreas by ducts.

十二指肠通过导管与肝和胰相连。

6.Objective To evaluate the diagnosis and treatment of primary tumor of the duodenum.

目的探讨原发性十二指肠肿瘤的诊断和治疗。

7.Conclusion TFD facilitates the motility of stomach, duodenum and ileum.

结论：通腑汤对胃、十二指肠乃至回肠均有较好的促动力作用。

8.Tissue, Membrane Protein, Human Tumor, Duodenum.

组织，膜蛋白，人肿瘤，十二指肠。

9.Tissue, Nuclear Protein, Human Fetal Normal, Duodenum.

组织，核蛋白，人正常胚胎，十二指肠。

10.The food passes from the stomach into the duodenum, where it begins to mix with digestive juices.

食物从胃进入十二指肠，在那里开始与消化液混合。

11.Doctors often examine the duodenum during an endoscopy to check for ulcers.

医生在内窥镜检查中常常检查十二指肠以查看是否有溃疡。

12.Bile is secreted into the duodenum to help digest fats.

胆汁被分泌到十二指肠以帮助消化脂肪。

13.A blockage in the duodenum can lead to serious digestive issues.

在十二指肠中的阻塞可能导致严重的消化问题。

14.The duodenum plays a crucial role in nutrient absorption.

十二指肠在营养吸收中起着至关重要的作用。

作文

The human digestive system is a complex network of organs that work together to break down food and absorb nutrients. One of the critical components of this system is the small intestine, which is divided into three parts: the duodenum, jejunum, and ileum. The first section, the duodenum (十二指肠), plays a vital role in digestion and nutrient absorption. The duodenum is approximately 25 to 30 centimeters long and is located just after the stomach. It receives partially digested food from the stomach, known as chyme, and is responsible for further breaking it down with the help of digestive juices. These juices come from the pancreas and bile from the liver, which are essential for the digestion of fats, proteins, and carbohydrates. One of the fascinating aspects of the duodenum is its ability to regulate the flow of chyme from the stomach. The pyloric sphincter, a muscular valve at the end of the stomach, controls how much chyme enters the duodenum. This regulation is crucial because the duodenum must process the chyme at a manageable rate to ensure efficient digestion and nutrient absorption. In addition to its role in digestion, the duodenum also plays a significant part in the overall health of the digestive system. It is lined with specialized cells that help absorb essential nutrients, such as vitamins and minerals, into the bloodstream. The presence of villi and microvilli, tiny finger-like projections on the inner wall of the duodenum, increases the surface area for absorption, making this process more efficient. Moreover, the duodenum is involved in the release of hormones that signal other organs in the digestive system. For instance, when fatty foods enter the duodenum, it releases cholecystokinin (CCK), which stimulates the gallbladder to release bile and the pancreas to secrete digestive enzymes. This hormonal response is crucial for maximizing the breakdown of nutrients. Understanding the function of the duodenum is essential, especially when considering digestive disorders. Conditions such as peptic ulcers, celiac disease, and even certain types of cancer can affect the duodenum, leading to symptoms like abdominal pain, bloating, and malabsorption of nutrients. Therefore, maintaining the health of the duodenum is vital for overall well-being. In conclusion, the duodenum (十二指肠) is an integral part of the digestive system, playing a crucial role in the digestion and absorption of nutrients. Its unique structure and function highlight the importance of this small section of the small intestine. By understanding the duodenum and its significance, we can better appreciate the complexities of our digestive system and the importance of maintaining its health.