foregut

简明释义

英[ˈfɔːɡʌt]美[ˈfoʊrˌɡʌt]

n. [胚][动] 前肠

英英释义

单词用法

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反义词

例句

1.The liver of Alligator sinensis was formed by the endodermal epithelia invigilated from the edge of foregut door and by surrounding mesoderm during early stages of pre-natal development.

扬子鳄肝脏由早期胚胎前肠门边缘内陷的内胚层上皮和脏壁中胚层组织共同发育形成。

2.This review summarizes the possible mechanisms which include weight loss, gastrointestinal hormones, foregut hypothesis, hindgut hypothesis, adipocytokines, and inflammatory factors.

本文总结了体重减轻、胃肠激素、前肠学说、后肠学说、脂肪细胞因子和炎症因子等方面机制的研究进展。

3.The foregut hypothesis was later contested.

前肠的假设后来引起争议。

4.The embryonic digestive tube, consisting of the foregut, the midgut, and the hindgut.

肠胚胎的消化管，包括前肠，中肠和后肠。

5.The epithelium cells of digestive tube with or without the striated border can be used as one of important standard for distinguishing the midgut from foregut and hindgut.

消化道上皮细胞有无纹状缘是区分中肠与前、后肠的重要标准之一。

6.The embryonic digestive tube consisting of the foregut the midgut and the hindgut.

肠胚胎的消化管，包括前肠，中肠和后肠。

7.A new scheme for zoning of foregut was proposed based on our observation.

根据我们的观察，对前肠提出了新的分区。

8.During the later period of the test, amylase activity in foregut of intermediate protein content feed group is significantly higher than that of high protein content group.

而在试验后期，中蛋白饲料组前肠中该酶活性显著高于高蛋白饲料组的。

9.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）。

10.Certain parasites can inhabit the foregut, leading to health issues in their hosts.

某些寄生虫可以栖息在前肠中，导致宿主的健康问题。

11.The embryonic development of the digestive system begins with the formation of the foregut.

消化系统的胚胎发育始于前肠的形成。

12.The foregut plays a crucial role in the digestion process by secreting enzymes.

前肠通过分泌酶在消化过程中发挥着关键作用。

13.In reptiles, the foregut is often specialized for different functions such as food storage.

在爬行动物中，前肠通常被专门化以执行不同的功能，如食物储存。

14.Understanding the anatomy of the foregut can help in diagnosing gastrointestinal diseases.

了解前肠的解剖结构有助于诊断胃肠疾病。

作文

The human digestive system is a complex and fascinating network of organs that work together to process food and absorb nutrients. One of the key components of this system is the foregut, which plays a vital role in the early stages of digestion. The term foregut refers to the anterior part of the digestive tract, which includes the esophagus, stomach, and the initial portion of the small intestine. Understanding the structure and function of the foregut can provide insights into how our bodies handle the food we consume.The foregut begins with the esophagus, a muscular tube that connects the throat to the stomach. This organ is responsible for transporting food from the mouth to the stomach through a series of coordinated muscle contractions known as peristalsis. Once food reaches the stomach, it undergoes further breakdown through mechanical and chemical processes. The stomach secretes gastric juices, which contain hydrochloric acid and digestive enzymes, to aid in the digestion of proteins and kill harmful bacteria.Following the stomach, the foregut continues into the duodenum, the first section of the small intestine. Here, the partially digested food, or chyme, mixes with bile from the liver and pancreatic juices from the pancreas. This mixture is crucial for the digestion of fats, carbohydrates, and proteins, allowing the body to absorb essential nutrients effectively.In addition to its digestive functions, the foregut also plays a significant role in regulating appetite and food intake. Hormones produced in the stomach and intestines signal the brain when we are hungry or full, helping to maintain energy balance. Disorders of the foregut, such as gastroesophageal reflux disease (GERD) or peptic ulcers, can disrupt these signals and lead to various health issues.Moreover, the foregut is not only important in humans but also in many other animals. In evolutionary biology, the study of the foregut across different species provides valuable information about how digestive systems have adapted to various diets. For instance, ruminants like cows have a specialized foregut that allows them to ferment plant material, enabling them to extract nutrients from tough grasses that many other animals cannot digest.Understanding the foregut is essential for medical professionals as well. Many diagnostic procedures and treatments focus on this area of the digestive system. Endoscopies allow doctors to visualize the foregut and identify abnormalities, while surgeries may be performed to correct structural issues or remove diseased tissue.In conclusion, the foregut is a critical part of the digestive system that initiates the process of breaking down food and absorbing nutrients. Its functions extend beyond mere digestion, influencing appetite regulation and overall health. By studying the foregut, we gain a deeper understanding of both human physiology and the evolutionary adaptations of various species. This knowledge is not only important for scientific research but also for clinical practice, highlighting the significance of the foregut in maintaining our health and well-being.

人类消化系统是一个复杂而迷人的器官网络，它们共同工作以处理食物和吸收营养。其中一个关键组成部分是前肠，它在消化的早期阶段中发挥着重要作用。术语前肠指的是消化道的前部，包括食道、胃和小肠的初始部分。理解前肠的结构和功能可以为我们提供有关身体如何处理所摄入食物的见解。前肠从食道开始，食道是连接喉咙和胃的肌肉管。这个器官负责通过一系列协调的肌肉收缩（称为蠕动）将食物从口腔运输到胃。一旦食物到达胃，就会通过机械和化学过程进一步分解。胃分泌胃液，其中包含盐酸和消化酶，以帮助消化蛋白质并杀死有害细菌。在胃之后，前肠继续进入十二指肠，这是小肠的第一部分。在这里，部分消化的食物（或称为糜粥）与来自肝脏的胆汁和来自胰腺的胰液混合。这种混合物对于脂肪、碳水化合物和蛋白质的消化至关重要，使身体能够有效地吸收必需的营养。除了其消化功能外，前肠在调节食欲和食物摄入方面也起着重要作用。胃和肠中产生的激素向大脑发出信号，告诉我们何时感到饥饿或饱腹，从而帮助维持能量平衡。前肠的疾病，如胃食管反流病（GERD）或消化性溃疡，可能会干扰这些信号，并导致各种健康问题。此外，前肠不仅对人类重要，对许多其他动物也是如此。在进化生物学中，研究不同物种的前肠提供了有关消化系统如何适应各种饮食的重要信息。例如，反刍动物如牛具有特殊的前肠，使它们能够发酵植物材料，从而使它们能够从许多其他动物无法消化的坚韧草料中提取营养。理解前肠对于医疗专业人员也至关重要。许多诊断程序和治疗都集中在消化系统的这一领域。内窥镜检查使医生能够可视化前肠并识别异常，而手术可能会被执行以纠正结构问题或切除病变组织。总之，前肠是消化系统的一个关键部分，它启动食物分解和营养吸收的过程。它的功能不仅仅限于消化，还影响食欲调节和整体健康。通过研究前肠，我们对人类生理学和各种物种的进化适应有了更深刻的理解。这一知识不仅对科学研究重要，也对临床实践至关重要，突显了前肠在维持我们健康和福祉中的重要性。