allantoic

简明释义

英[ælænˈtɔɪk]美[ˌælənˈtoʊɪk]

adj. 尿囊的；尿囊内的；有尿囊的

英英释义

单词用法

同义词

反义词

例句

1.Prepared serum containing corresponding drugs was used in chicken embryo allantoic membrane (CAM) model to observe the effect of angiogenesis of CGZXP by being compared with VEGF165 protein.

制备相应含药血清，与血管内皮生长因子165蛋白比较观察从肝治心方对鸡胚尿囊膜模型的促血管生成作用。

2.SOD and MDA concentration in egg yolk, egg white, chick embryo allantoic liquid and chick embryo amnionic fluid have been determined in this study.

实验对鸡蛋蛋黄、鸡蛋蛋清、鸡胚尿囊液和鸡胚羊水中的SOD和MDA进行了测定。

3.Allantoic fluid of chicken embryo that had been inoculated with one strain of renal type IBV was used to challenge 16-day-old chicken.

用鸡肾型传支病毒（IBV）分离株的鸡胚尿囊液接种16日龄蛋雏鸡，并随机分为对照组、中药治疗组和卵抗治疗组。

4.In future, Dr Butt envisages, the egg-sorting operation of a large hatchery might look like this: A conveyor belt moves the eggs along, gently jostling them until their allantoic sacs point upright.

展望未来，Butt博士表示，今后大型孵化工厂的鸡蛋选育操作都会像他所设想的那样：鸡蛋由传送带运输，它们互相碰撞，直到鸡蛋较小的一头（尿囊处在较小的一头）都垂直朝上，之后这些鸡蛋便整齐的排列在一排针管之下。

5.In future, Dr Butt envisages, the egg-sorting operation of a large hatchery might look like this: A conveyor belt moves the eggs along, gently jostling them until their allantoic sacs point upright.

展望未来，Butt博士表示，今后大型孵化工厂的鸡蛋选育操作都会像他所设想的那样：鸡蛋由传送带运输，它们互相碰撞，直到鸡蛋较小的一头（尿囊处在较小的一头）都垂直朝上，之后这些鸡蛋便整齐的排列在一排针管之下。

6.The D1 isolate of goose paramyxovirus caused 100% mortality of goose, duck and chicken embryos. Infected allantoic fluid could produce high titer of hemagglutinin test.

鹅副黏病毒d 1分离株能致死鹅胚、鸭胚和鸡胚，致死率达到100%，感染的尿囊液能产生较高的血凝效价。

7.The PH value of amniotic and allantoic fluid supplemented each other to some degree.

羊水和尿囊液的pH具有一定的互补性。

8.Researchers studied the allantoic 尿囊的 fluid to understand its role in embryonic development.

研究人员研究了allantoic 尿囊的液体，以了解其在胚胎发育中的作用。

9.The waste products from the developing fetus are stored in the allantoic 尿囊的 sac until they can be expelled.

发育中的胎儿的废物储存在allantoic 尿囊的囊中，直到可以排出。

10.In reptiles, the allantoic 尿囊的 membrane plays a crucial role in gas exchange.

在爬行动物中，allantoic 尿囊的膜在气体交换中起着关键作用。

11.The embryo develops within the egg, surrounded by the allantoic 尿囊的 fluid that provides essential nutrients.

胚胎在蛋内发育，周围被allantoic 尿囊的液体包围，提供必要的营养。

12.The presence of an allantoic 尿囊的 cavity is a characteristic feature of amniotic eggs.

一个allantoic 尿囊的腔的存在是羊膜卵的一个特征。

作文

The study of embryonic development is a fascinating field that provides insights into the processes that govern life. One of the key structures involved in this development is the allantois, an extra-embryonic membrane that plays a crucial role in the growth and sustenance of the embryo. The term allantoic refers to anything related to this important structure. In many vertebrates, the allantoic membrane serves as a site for gas exchange and waste disposal, which are vital for the developing organism. Understanding the allantoic function helps researchers unravel the complexities of embryogenesis and the evolutionary adaptations that have occurred over time.In reptiles and birds, the allantoic sac is particularly well-developed. It collects nitrogenous wastes produced by the embryo and facilitates respiration by allowing oxygen to diffuse through its walls. This adaptation is essential for the survival of the embryo within the egg, where space and resources are limited. The evolution of the allantoic structure illustrates how organisms have adapted to their environments, ensuring that their young can develop successfully even in challenging conditions.Moreover, the allantoic fluid, which fills the cavity of the allantois, is rich in nutrients and provides a protective environment for the embryo. This fluid not only cushions the developing fetus but also aids in the transport of gases and metabolic waste. The presence of the allantoic fluid highlights the intricate relationships between different embryonic membranes, such as the chorion and yolk sac, which work together to support the embryo's development.In mammals, the role of the allantoic structure is somewhat different. While it still plays a part in waste management and gas exchange, its function is more integrated with the placenta. The allantois fuses with the chorion to form the chorioallantoic membrane, which is critical for nutrient and gas exchange between the mother and the developing fetus. This complex interaction showcases the evolutionary significance of the allantoic structure, as it has adapted to meet the needs of different species throughout the animal kingdom.Research into the allantoic development can also have practical applications in medicine and biotechnology. For instance, scientists are investigating how the mechanisms of the allantoic membrane can inform regenerative medicine and tissue engineering. By understanding how the allantoic structure supports growth and development, researchers hope to replicate these processes in laboratory settings, potentially leading to breakthroughs in treating various medical conditions.In conclusion, the allantoic membrane is a remarkable feature of embryonic development that illustrates the complexity and adaptability of life. From its roles in waste management and gas exchange to its integration with the placenta in mammals, the allantoic structure is essential for the survival and health of developing embryos. As research continues to explore the intricacies of embryogenesis, the allantoic membrane remains a vital area of study that promises to enhance our understanding of biology and medicine.

胚胎发育的研究是一个迷人的领域，它提供了对生命过程的深入了解。其中一个关键结构是脐带，即一种额外的胚外膜，在胚胎的生长和维持中发挥着至关重要的作用。术语allantoic指的是与这一重要结构相关的任何事物。在许多脊椎动物中，allantoic膜作为气体交换和废物处理的场所，对于发育中的有机体至关重要。理解allantoic功能有助于研究人员揭示胚胎发生的复杂性以及随着时间推移发生的进化适应。在爬行动物和鸟类中，allantoic囊特别发达。它收集胚胎产生的氮废物，并通过其壁促进呼吸。这种适应对于在蛋内生存的胚胎至关重要，因为空间和资源有限。allantoic结构的进化说明了生物如何适应其环境，确保其幼体即使在困难条件下也能成功发育。此外，填充脐带腔的allantoic液体富含养分，为胚胎提供了一个保护环境。这种液体不仅缓冲发育中的胎儿，还帮助气体和代谢废物的运输。allantoic液体的存在突显了不同胚外膜之间的复杂关系，如绒毛膜和卵黄囊，它们共同协作以支持胚胎的发育。在哺乳动物中，allantoic结构的作用有所不同。虽然它仍在废物管理和气体交换中发挥作用，但其功能与胎盘更为整合。脐带与绒毛膜融合形成绒毛脐带膜，这对母体和发育中的胎儿之间的营养和气体交换至关重要。这种复杂的相互作用展示了allantoic结构的进化重要性，因为它已适应动物王国中不同物种的需求。对allantoic发育的研究还可能在医学和生物技术中具有实际应用。例如，科学家们正在研究allantoic膜的机制如何为再生医学和组织工程提供信息。通过了解allantoic结构如何支持生长和发育，研究人员希望在实验室环境中复制这些过程，可能导致治疗各种医疗状况的突破。总之，allantoic膜是胚胎发育的一个显著特征，展示了生命的复杂性和适应性。从其在废物管理和气体交换中的作用到在哺乳动物中与胎盘的整合，allantoic结构对发育胚胎的生存和健康至关重要。随着研究继续探索胚胎发生的复杂性，allantoic膜仍然是一个重要的研究领域，承诺增强我们对生物学和医学的理解。