midgut

简明释义

英[ˈmɪdɡʌt]美[ˈmɪdˌɡʌt]

n. 中肠

英英释义

单词用法

同义词

反义词

例句

1.The origin of cocoonase of silkmoth, Bombyx mori was likely midgut, maxilla, or craw. However, it was absent of direct evidences whether the craw could secret cocoonase .

家蚕蛾溶茧酶可能来源于下颚、嗉囊和中肠，嗉囊是否具有分泌溶茧酶的能力至今缺乏直接的证据。

2.There was no counter flow of fluids from the posterior midgut as in most orthopterans.

臭腹腺蝗肠内没有像大多数直翅目昆虫那样自后肠的液流逆向流动。

3.The reduced binding of the toxin to the midgut acceptors.

中肠的吸附位点对毒素蛋白的亲和力下降。

4.The protease activity in hepatopancreas, foregut, midgut and hindgut was significantly decreased with the increase of dietary corn starch supplemental level(P<0.05).

肝胰脏、前肠、中肠、后肠中蛋白酶活性均随饲料中玉米淀粉添加水平的升高而显著降低（P<0.05）。

5.Only in midgut there was structure of the typical microvilli.

仅中肠表面具典型微绒毛结构。

6.The protease, amylase, and cellulase from Portunus trituberculatus midgut gland had high thermostability and pH-stability in 2h and 4 h.

蛋白酶、淀粉酶、纤维素酶在短时间内有很高的热稳定性及很广的酸碱稳定性范围。

7.After ingestion by the larvae, viruses are dissolved in the midgut and are released.

当病毒被幼虫摄入后，病毒扩散到中肠并被释放出来。

8.Butanolextract of areca catechu l. has certain inhibiting effect on the midgut amylase activity of confused flour beetle larvae.

槟榔-正丁醇提取物对杂拟谷盗幼虫中肠淀粉酶的活性具有一定的抑制作用。

9.The mosquito has a sensory nerve that signals the brain when the midgut is full; otherwise feeding would continue until the bursting point.

蚊子有敏锐的神经在肠子满了的时候来通知大脑，否则在装满之前进食都将继续。

10.The midgut is a crucial part of the digestive system in many animals.

在许多动物中，中肠是消化系统的一个关键部分。

11.In insects, the midgut plays a vital role in nutrient absorption.

在昆虫中，中肠在营养吸收中发挥着重要作用。

12.A healthy midgut is essential for proper digestion and absorption.

健康的中肠对于适当的消化和吸收至关重要。

13.The midgut connects the foregut and hindgut in many vertebrates.

在许多脊椎动物中，中肠连接着前肠和后肠。

14.Researchers are studying how toxins affect the midgut of amphibians.

研究人员正在研究毒素如何影响两栖动物的中肠。

作文

The human digestive system is a complex network of organs that work together to break down food and absorb nutrients. Among these organs, the small intestine plays a crucial role, and it can be divided into three main sections: the duodenum, the jejunum, and the midgut. The midgut refers specifically to the middle section of the small intestine, which includes the jejunum and a portion of the ileum. This region is essential for digestion and nutrient absorption.During the digestive process, food enters the stomach where it is mixed with gastric juices, breaking it down into a semi-liquid form known as chyme. Once the chyme exits the stomach, it enters the duodenum, the first part of the small intestine. Here, bile from the liver and pancreatic juices are introduced to further aid in digestion. After the duodenum, the chyme moves into the midgut, where the majority of nutrient absorption occurs.The midgut is lined with tiny finger-like projections called villi, which increase the surface area for absorption. These villi are covered in even smaller hair-like structures called microvilli, creating a brush border that maximizes nutrient uptake. As the chyme passes through the midgut, nutrients such as carbohydrates, proteins, fats, vitamins, and minerals are absorbed into the bloodstream, providing essential energy and building blocks for the body.One of the fascinating aspects of the midgut is its ability to adapt to different dietary habits. For instance, individuals who consume a high-fiber diet may have a greater surface area in their midgut, allowing for more efficient nutrient absorption. Conversely, those with a diet low in fiber may experience a decrease in the efficiency of their digestive system.Moreover, the midgut is not only important for nutrient absorption but also plays a role in the immune system. The gut-associated lymphoid tissue (GALT) found in the midgut helps protect the body from pathogens that may enter through food. This highlights the interconnectedness of digestion and immunity, emphasizing the importance of maintaining a healthy digestive tract.In addition to its physiological functions, the midgut has been a subject of scientific research, particularly in the field of developmental biology. Studies on various organisms, including fruit flies and zebrafish, have provided insights into how the midgut develops and its role in overall health. Understanding the midgut can lead to advancements in treating gastrointestinal diseases and improving digestive health.In conclusion, the midgut is a vital component of the digestive system, responsible for the majority of nutrient absorption and playing a key role in immune function. Its intricate structure and adaptability make it a fascinating area of study within biology and medicine. By understanding the importance of the midgut, we can better appreciate the complexities of our digestive health and the impact of our dietary choices on our overall well-being.

人类的消化系统是一个复杂的器官网络，它们共同作用于分解食物和吸收营养。在这些器官中，小肠发挥着至关重要的作用，可以分为三个主要部分：十二指肠、空肠和中肠。中肠专指小肠的中间部分，包括空肠和部分回肠。这个区域对消化和营养吸收至关重要。在消化过程中，食物进入胃，与胃液混合，分解成一种称为食糜的半液态物质。一旦食糜离开胃，它就进入十二指肠，这是小肠的第一部分。在这里，来自肝脏的胆汁和胰腺液被引入，以进一步帮助消化。食糜经过十二指肠后，进入中肠，大部分营养吸收发生在这里。中肠内衬有微小的指状突起，称为绒毛，这些绒毛增加了吸收的表面积。这些绒毛上覆盖着更小的毛状结构，称为微绒毛，形成刷状边缘，最大限度地提高营养摄取。当食糜通过中肠时，碳水化合物、蛋白质、脂肪、维生素和矿物质等营养物质被吸收到血液中，为身体提供必需的能量和构建块。中肠的一个迷人之处在于它能够适应不同的饮食习惯。例如，摄入高纤维饮食的人可能在其中肠中拥有更大的表面积，从而允许更有效的营养吸收。相反，低纤维饮食的人可能会体验到消化系统效率的下降。此外，中肠不仅对营养吸收重要，还在免疫系统中发挥作用。存在于中肠中的肠相关淋巴组织（GALT）有助于保护身体免受可能通过食物进入的病原体。这突显了消化与免疫之间的相互联系，强调了保持健康消化道的重要性。除了生理功能外，中肠还是科学研究的主题，特别是在发育生物学领域。对各种生物体的研究，包括果蝇和斑马鱼，提供了关于中肠如何发育及其在整体健康中作用的洞见。了解中肠可以推动治疗胃肠疾病和改善消化健康方面的进展。总之，中肠是消化系统的重要组成部分，负责大部分营养吸收，并在免疫功能中发挥关键作用。其复杂的结构和适应性使其成为生物学和医学研究中的一个迷人领域。通过理解中肠的重要性，我们可以更好地欣赏消化健康的复杂性以及我们的饮食选择对整体健康的影响。