stomodeum

简明释义

英[ˌstoʊməˈdiːəm]美[ˌstoʊməˈdiːəm]

[胚] 口凹；[胚] 口道

复 数 s t o m o d e a 或 s t o m o d e u m s

英英释义

单词用法

同义词

反义词

例句

1.In the course of development, the invagination of stomodeum occurs earlier than that of proctodeum at the third and the sixth nauplius stages respectively.

在发育过程中，口凹是在第三期无节幼虫时内陷形成，而原肛是在第六期无节幼虫时内陷形成的，所以口凹的发生早于原肛的发生。

2.In the course of development, the invagination of stomodeum occurs earlier than that of proctodeum at the third and the sixth nauplius stages respectively.

在发育过程中，口凹是在第三期无节幼虫时内陷形成，而原肛是在第六期无节幼虫时内陷形成的，所以口凹的发生早于原肛的发生。

3.During embryonic development, the stomodeum plays a crucial role in the formation of the face and the jaw.

在胚胎发育过程中，stomodeum在面部和下颌的形成中起着至关重要的作用。

4.Anomalies in the stomodeum can lead to congenital defects such as cleft lip and palate.

在stomodeum中的异常可能导致先天性缺陷，如唇腭裂。

5.The development of the mouth begins with the formation of the stomodeum, which is the embryonic precursor to the oral cavity.

口腔的发展始于stomodeum的形成，它是口腔的胚胎前体。

6.The stomodeum is lined with ectoderm, which eventually contributes to the epithelial lining of the mouth.

stomodeum由外胚层衬里，最终会成为口腔上皮内衬的一部分。

7.In studying vertebrate development, researchers often focus on the changes in the stomodeum during the early stages.

在研究脊椎动物发育时，研究人员通常关注早期阶段中stomodeum的变化。

作文

The development of the human body is a remarkable process that begins even before birth. One of the earliest structures to form in the embryo is the stomodeum, which plays a crucial role in the formation of the mouth and other related structures. The stomodeum is essentially an early embryonic cavity that will eventually give rise to the oral cavity. Understanding this structure is vital for comprehending the complexities of human anatomy and development.During the third week of embryonic development, the stomodeum begins to form as a depression in the ectoderm. This depression is located at the anterior end of the embryo and marks the beginning of the digestive system. As the embryo continues to grow, the stomodeum deepens and becomes more defined, eventually leading to the formation of the future mouth.The significance of the stomodeum extends beyond just the mouth; it also contributes to the development of surrounding structures such as the jaw, teeth, and even parts of the pharynx. The interaction between the stomodeum and the underlying mesodermal tissues is critical for proper formation. Any disruptions in this process can lead to congenital anomalies, highlighting the importance of the stomodeum in embryonic development.In addition to its structural role, the stomodeum is also involved in signaling pathways that regulate the growth and differentiation of various cell types. For instance, specific genes are activated in response to the formation of the stomodeum, which guide the development of the oral cavity and its associated structures. Researchers have been studying these genetic pathways to better understand how abnormalities in the stomodeum can lead to conditions such as cleft lip and palate.The study of the stomodeum is not only important for developmental biology but also has implications for medical science. By understanding the early stages of mouth development, scientists can develop better strategies for diagnosing and treating oral and craniofacial disorders. Furthermore, advancements in regenerative medicine are exploring ways to utilize knowledge about the stomodeum to create tissue-engineered solutions for patients with congenital defects.In conclusion, the stomodeum is a fundamental structure in embryonic development that serves as the precursor to the mouth and other critical anatomical features. Its formation is a complex process influenced by various genetic and environmental factors. Continued research into the stomodeum will not only enhance our understanding of human development but may also lead to significant medical breakthroughs in treating congenital anomalies. As we delve deeper into the intricacies of the stomodeum, we uncover the foundational aspects of life that shape who we are as individuals.

人体的发育是一个了不起的过程，甚至在出生之前就开始了。胚胎中最早形成的结构之一是stomodeum，它在口腔及其他相关结构的形成中发挥着至关重要的作用。stomodeum本质上是一个早期的胚胎腔，将最终产生口腔。理解这一结构对于理解人体解剖学和发育的复杂性至关重要。在胚胎发育的第三周，stomodeum开始形成，作为外胚层中的一个凹陷。这个凹陷位于胚胎的前端，标志着消化系统的开始。随着胚胎的继续生长，stomodeum逐渐加深并变得更加明确，最终导致未来口腔的形成。stomodeum的重要性不仅仅体现在口腔；它还对下颌、牙齿甚至咽部的发育起着贡献。stomodeum与底层中胚层组织之间的相互作用对于正确的形成至关重要。这个过程中的任何干扰都可能导致先天性异常，突显了stomodeum在胚胎发育中的重要性。除了其结构作用外，stomodeum还参与调节各种细胞类型生长和分化的信号通路。例如，特定基因会在stomodeum形成时被激活，这些基因指导口腔及其相关结构的发育。研究人员一直在研究这些基因通路，以更好地理解stomodeum中异常如何导致唇腭裂等疾病。对stomodeum的研究不仅对发育生物学重要，还有医学科学的意义。通过了解口腔发育的早期阶段，科学家可以开发出更好的策略来诊断和治疗口腔及颅面疾病。此外，再生医学的进展正在探索利用关于stomodeum的知识为先天缺陷患者创造组织工程解决方案。总之，stomodeum是胚胎发育中的一个基本结构，是口腔和其他关键解剖特征的前体。它的形成是一个受各种遗传和环境因素影响的复杂过程。对stomodeum的持续研究不仅将增强我们对人类发育的理解，还可能导致在治疗先天性异常方面的重大医学突破。当我们深入探讨stomodeum的复杂性时，我们揭示了塑造我们作为个体的生命基础方面。