epiblast

简明释义

英[ˈepɪˌblæst]美[ˈepɪˌblæst]

n. 外胚层；上胚层

英英释义

单词用法

同义词

反义词

例句

1.Four types of the of grafts from the organizer area were transplanted into host embryos to see if the epiblast or hypoblast of the organizer area had an ability to induce a secondary embryo.

并将组织者区域的细胞移植到宿主胚胎中，验证其诱导次级胚胎的能力。

2.Four types of the of grafts from the organizer area were transplanted into host embryos to see if the epiblast or hypoblast of the organizer area had an ability to induce a secondary embryo.

并将组织者区域的细胞移植到宿主胚胎中，验证其诱导次级胚胎的能力。

3.Most grass embryos have a flap-like structure known as the epiblast.

大多数禾本科胚有一片瓣状结构通常称为外胚叶。

4.The formation of the epiblast is crucial during the early stages of embryonic development.

在胚胎发育的早期阶段，表胚层的形成至关重要。

5.Researchers are studying how the epiblast differentiates into various cell types.

研究人员正在研究如何将表胚层分化为各种细胞类型。

6.In mammals, the epiblast gives rise to the three germ layers.

在哺乳动物中，表胚层产生三种胚层。

7.The migration of cells from the epiblast is essential for proper organ formation.

来自表胚层的细胞迁移对于器官的正常形成至关重要。

8.During gastrulation, the epiblast undergoes significant morphological changes.

在原肠胚阶段，表胚层经历显著的形态变化。

作文

The study of embryology has revealed many fascinating aspects of human development, one of which is the role of the epiblast. The epiblast is a layer of cells that forms during the early stages of embryonic development. It plays a crucial role in the formation of the embryo and ultimately contributes to the development of various tissues and organs. Understanding the function of the epiblast provides insight into the complex processes that govern human growth and development. During the process of gastrulation, which occurs shortly after fertilization, the epiblast undergoes significant changes. This layer of cells is responsible for giving rise to the three primary germ layers: the ectoderm, mesoderm, and endoderm. Each of these layers will later differentiate into specific tissues and organs. For instance, the ectoderm develops into the skin and nervous system, while the mesoderm gives rise to muscles, bones, and the circulatory system. The endoderm, on the other hand, forms the lining of the digestive and respiratory tracts. Therefore, the epiblast is fundamental to the foundational structure of the organism. Furthermore, the epiblast is not only important for its role in forming germ layers but also for its interaction with other cell types during development. The signaling pathways that occur between the epiblast and neighboring cells are vital for proper embryonic development. These interactions help to determine cell fate, guiding cells to develop into specific types based on their location and the signals they receive. Disruptions in these signaling pathways can lead to developmental disorders or congenital anomalies. In addition to its biological significance, the epiblast has also been a focus of research in regenerative medicine. Scientists are exploring how the properties of the epiblast can be harnessed to create stem cells that have the potential to regenerate damaged tissues. This research could pave the way for innovative treatments for various diseases and injuries, highlighting the importance of understanding the epiblast not just in embryology, but also in therapeutic applications. Moreover, studying the epiblast can enhance our understanding of evolutionary biology. The mechanisms that govern the development of the epiblast and its derivatives are conserved across many species, suggesting a common evolutionary origin. By comparing the epiblast development in different organisms, researchers can gain insights into the evolutionary changes that have occurred over time, shedding light on how complex life forms have evolved. In conclusion, the epiblast is a critical component of embryonic development, serving as the foundation for the formation of essential tissues and organs. Its interactions with other cell types and its implications for regenerative medicine and evolutionary biology make it a subject of great interest in scientific research. As we continue to uncover the mysteries of the epiblast, we gain a deeper appreciation for the intricate processes that shape life from its earliest beginnings.

胚胎学的研究揭示了人类发育的许多迷人方面，其中之一是上胚层的作用。上胚层是一个细胞层，在胚胎发育的早期阶段形成。它在胚胎的形成中起着至关重要的作用，最终有助于各种组织和器官的发展。理解上胚层的功能可以深入了解支配人类生长和发育的复杂过程。 在受精后不久发生的原肠形成过程中，上胚层经历了显著的变化。这个细胞层负责产生三种主要的胚层：外胚层、中胚层和内胚层。每个胚层随后将分化为特定的组织和器官。例如，外胚层发展成皮肤和神经系统，而中胚层则形成肌肉、骨骼和循环系统。另一方面，内胚层形成消化道和呼吸道的内衬。因此，上胚层对有机体的基础结构至关重要。 此外，上胚层不仅因其在形成胚层中的作用而重要，还因其在发育过程中与其他细胞类型的相互作用而重要。发生在上胚层与邻近细胞之间的信号通路对于正常的胚胎发育至关重要。这些相互作用有助于决定细胞命运，引导细胞根据其位置和接收到的信号发展成特定类型。如果这些信号通路出现中断，可能会导致发育障碍或先天性畸形。 除了其生物学意义外，上胚层还成为再生医学研究的重点。科学家们正在探索如何利用上胚层的特性来创造具有再生受损组织潜力的干细胞。这项研究可能为各种疾病和伤害的创新治疗铺平道路，突显了理解上胚层在胚胎学和治疗应用中的重要性。 此外，研究上胚层可以增强我们对进化生物学的理解。调控上胚层及其衍生物发育的机制在许多物种中是保守的，这表明其共同的进化起源。通过比较不同生物中的上胚层发育，研究人员可以获得关于进化过程中发生的变化的见解，从而阐明复杂生命形式是如何演变的。 总之，上胚层是胚胎发育的关键组成部分，为基本组织和器官的形成奠定了基础。它与其他细胞类型的相互作用以及在再生医学和进化生物学中的影响使其成为科学研究的重大兴趣点。随着我们继续揭开上胚层的奥秘，我们对从最早开始塑造生命的复杂过程有了更深刻的理解。