blastopore

简明释义

英[ˈblæstəʊˌpɔː]美[ˈblæstəpɔːr]

n. [胚] 胚孔

英英释义

单词用法

同义词

反义词

例句

1.Only the dorsal lip of the blastopore could induce altered development in the host.

只有胚孔的背唇能够诱导宿主发育的改变。

2.In contrast, the optic vesicle of S. kneri in Xinfengjiang River Reservoir and S. scherzeri in the Jialing River appears after the closure of blastopore.

嘉陵江大眼鳜视泡出现在胚孔封闭前，而鳜和斑鳜视泡出现在胚孔封闭后。

3.In contrast, the optic vesicle of S. kneri in Xinfengjiang River Reservoir and S. scherzeri in the Jialing River appears after the closure of blastopore.

嘉陵江大眼鳜视泡出现在胚孔封闭前，而鳜和斑鳜视泡出现在胚孔封闭后。

4.Researchers observed that the blastopore 原肠口 can influence cell migration during the early stages of development.

研究人员观察到，blastopore 原肠口 可以影响发育早期阶段的细胞迁移。

5.In echinoderms, the position of the blastopore 原肠口 plays a significant role in determining body symmetry.

在棘皮动物中，blastopore 原肠口 的位置在决定身体对称性方面起着重要作用。

6.During early embryonic development, the formation of the blastopore 原肠口 marks a critical stage in gastrulation.

在早期胚胎发育过程中，blastopore 原肠口 的形成标志着胚层形成的关键阶段。

7.In amphibians, the blastopore 原肠口 eventually develops into the anus of the organism.

在两栖动物中，blastopore 原肠口 最终发展成生物的肛门。

8.The study of the blastopore 原肠口 is essential for understanding the evolutionary relationships among different animal phyla.

研究 blastopore 原肠口 对于理解不同动物门之间的进化关系至关重要。

作文

The study of embryology reveals many fascinating aspects of development in various organisms. One such critical feature is the formation of the blastopore, which plays a pivotal role during the early stages of embryonic development. The blastopore is the opening that forms during the gastrulation phase, marking the beginning of the digestive tract in an embryo. Understanding this structure is essential for grasping how complex organisms develop from a single fertilized egg.In most animals, the blastopore ultimately becomes either the mouth or the anus, depending on the organism's classification. For instance, in protostomes, which include organisms such as mollusks and annelids, the blastopore develops into the mouth. In contrast, in deuterostomes, which include echinoderms and chordates, the blastopore typically becomes the anus. This distinction is not just a trivial fact; it has significant implications for the evolutionary relationships among different animal groups.During the process of gastrulation, cells migrate and rearrange to form distinct layers known as germ layers. The establishment of the blastopore is crucial because it marks the transition from a simple ball of cells, known as a blastula, to a more complex structure with multiple layers. These germ layers will eventually differentiate into various tissues and organs, laying down the foundation for the organism's body plan.Research into the blastopore has provided insights into developmental biology and evolutionary theory. Scientists have studied various model organisms, such as sea urchins and frogs, to observe how the blastopore forms and functions. These studies have revealed that the mechanisms behind blastopore formation are conserved across many species, indicating a common evolutionary origin.Moreover, understanding the blastopore has implications beyond basic biology. It can inform medical research, particularly in regenerative medicine and developmental disorders. By comprehending how embryos develop and how structures like the blastopore contribute to that process, researchers can explore ways to manipulate these pathways for therapeutic purposes.In conclusion, the blastopore is a fundamental aspect of embryonic development that illustrates the intricate processes involved in forming complex life. Its role in establishing the digestive system and its significance in the evolutionary context make it a topic of great interest in the field of biology. As we continue to explore the mysteries of development, the blastopore will undoubtedly remain a key focus of research, providing deeper insights into both the history of life on Earth and the potential for future advancements in science and medicine.

胚胎学的研究揭示了各种生物发育中的许多迷人方面。其中一个关键特征是blastopore的形成，它在胚胎发育的早期阶段发挥着重要作用。blastopore是指在胃腺期形成的开口，标志着胚胎消化道的开始。理解这一结构对于掌握复杂生物如何从单个受精卵发展而来至关重要。在大多数动物中，blastopore最终会成为嘴或肛门，这取决于生物的分类。例如，在原口动物中，包括软体动物和环节动物，blastopore发育成嘴。相反，在后口动物中，包括棘皮动物和脊索动物，blastopore通常会成为肛门。这一区别不仅仅是一个琐碎的事实；它对不同动物群体之间的进化关系具有重要意义。在胃腺形成过程中，细胞迁移并重新排列以形成称为胚层的不同层次。blastopore的建立至关重要，因为它标志着从简单的细胞球（称为胚泡）到更复杂结构的过渡，这些结构具有多个层次。这些胚层最终将分化为各种组织和器官，为生物体的身体结构奠定基础。对blastopore的研究为发育生物学和进化理论提供了见解。科学家们研究了各种模型生物，如海胆和青蛙，以观察blastopore是如何形成和发挥作用的。这些研究揭示了blastopore形成背后的机制在许多物种中是保守的，表明它们具有共同的进化起源。此外，理解blastopore不仅限于基础生物学。它还可以为医学研究提供信息，特别是在再生医学和发育障碍方面。通过理解胚胎如何发育以及像blastopore这样的结构如何促进这一过程，研究人员可以探索操纵这些途径以用于治疗的方式。总之，blastopore是胚胎发育的基本方面，展示了形成复杂生命所涉及的错综复杂的过程。它在建立消化系统中的作用以及在进化背景中的重要性，使其成为生物学领域非常感兴趣的话题。随着我们继续探索发育的奥秘，blastopore无疑将继续成为研究的重点，为我们提供对地球生命历史及未来科学和医学进步的更深刻见解。