metanephros

简明释义

英[ˌmetəˈnefrɒs]美[ˌmetəˈnefrɑs]

n. [胚] 后肾

复 数 m e t a n e p h r o i

英英释义

单词用法

同义词

反义词

例句

1.Objective: The patterns and characteristics about metanephric development and differentiation of Alligator sinensis were explored through observation on the histogenesis of metanephros.

目的：通过对扬子鳄胚胎后肾组织发生过程的观察，探讨其后肾发生及分化的规律和特点。

2.Objective: The patterns and characteristics about metanephric development and differentiation of Alligator sinensis were explored through observation on the histogenesis of metanephros.

目的：通过对扬子鳄胚胎后肾组织发生过程的观察，探讨其后肾发生及分化的规律和特点。

3.The goat embryo re-acted the process of the system evolution, which passed through pronephros, mesonephros and metanephros.

山羊胚胎重新反应了系统进化的过程，该过程通过前肾，中肾和后肾。

4.The development of the kidney, the major excretory organ after birth, consists of 3 stages:the pronephros, mesonephros and metanephros.

肾脏是人体主要的排泄器官，它的发育经过原肾、中肾、后肾3个阶段。

5.Research on the metanephros has provided insights into renal disorders and potential treatments.

对metanephros的研究为肾脏疾病及潜在治疗提供了见解。

6.In fish and amphibians, the metanephros is not present; instead, they have different excretory systems.

在鱼类和两栖动物中，不存在metanephros; 它们有不同的排泄系统。

7.The metanephros is responsible for urine production in adult mammals.

metanephros负责成年哺乳动物的尿液生成。

8.During embryonic development, the metanephros emerges as the final stage of kidney formation.

在胚胎发育过程中，metanephros作为肾脏形成的最后阶段出现。

9.The development of the metanephros is crucial for the formation of functional kidneys in mammals.

发育中的metanephros对于哺乳动物功能性肾脏的形成至关重要。

作文

The study of embryonic development reveals fascinating insights into the formation of various organs in the body. One such critical structure is the metanephros, which plays a vital role in the development of the urinary system in vertebrates. The metanephros is the final stage of kidney development and is essential for the excretion of waste products. It originates from the intermediate mesoderm during the fifth week of gestation in humans, marking an important transition in renal development. The process begins with the formation of the pronephros and mesonephros, which are earlier stages of kidney development. However, these structures are transient and are eventually replaced by the metanephros. This transition is crucial as the metanephros becomes the functional kidney that persists throughout adulthood. In fact, the metanephros not only serves the purpose of filtering blood and producing urine but also plays a significant role in regulating electrolyte balance and maintaining homeostasis. During its development, the metanephros undergoes complex morphogenetic processes, including branching morphogenesis, where the ureteric bud branches out to form the collecting ducts of the kidney. This intricate process is guided by various signaling pathways and growth factors that ensure proper kidney architecture and function. Any disruption in this process can lead to congenital anomalies such as renal agenesis or dysplasia, highlighting the importance of the metanephros in human health. In addition to its developmental significance, the metanephros has been a subject of extensive research in regenerative medicine. Scientists are exploring ways to harness the cellular mechanisms involved in the regeneration of the metanephros to develop treatments for kidney diseases. Given the rising incidence of chronic kidney disease worldwide, understanding the biology of the metanephros could pave the way for innovative therapeutic strategies. Furthermore, studying the metanephros provides insights into evolutionary biology. The presence of this organ in various vertebrates illustrates the adaptive changes that have occurred over millions of years. For instance, the metanephros in reptiles and mammals is more advanced compared to that in amphibians, reflecting the different environmental adaptations and physiological requirements of these species. In conclusion, the metanephros is not just a mere anatomical structure; it symbolizes the intricate interplay of genetics, development, and evolution. Its role in kidney function and potential in medical research underscores the significance of understanding this organ in greater detail. As we continue to unravel the complexities associated with the metanephros, we move closer to addressing some of the most pressing health challenges faced by humanity today. The journey of discovery surrounding the metanephros is a testament to the wonders of biological science and its implications for future generations.

胚胎发育的研究揭示了身体各个器官形成的迷人见解。其中一个关键结构是metanephros，它在脊椎动物尿液系统的发展中发挥着至关重要的作用。metanephros是肾脏发育的最终阶段，对于排泄废物至关重要。它起源于人类妊娠第五周的中间中胚层，标志着肾脏发育的重要过渡。这一过程始于原肾和中肾的形成，这些是肾脏发育的早期阶段。然而，这些结构是短暂的，最终被metanephros所取代。这一过渡至关重要，因为metanephros成为成年期持续存在的功能性肾脏。实际上，metanephros不仅用于过滤血液和产生尿液，还在调节电解质平衡和维持体内稳态方面发挥着重要作用。在其发育过程中，metanephros经历了复杂的形态发生过程，包括分支形态发生，其中输尿管芽分支形成肾脏的集合管。这一复杂过程受到各种信号通路和生长因子的指导，以确保肾脏的正确结构和功能。任何对这一过程的干扰都可能导致先天性异常，如肾发育不全或肾萎缩，突显了metanephros在人体健康中的重要性。除了其发育意义外，metanephros也是再生医学广泛研究的主题。科学家们正在探索利用metanephros中涉及的细胞机制来开发治疗肾病的方法。考虑到全球慢性肾病的发病率不断上升，了解metanephros的生物学可能为创新治疗策略铺平道路。此外，研究metanephros还提供了对进化生物学的见解。在各种脊椎动物中存在这一器官说明了数百万年来发生的适应性变化。例如，爬行动物和哺乳动物的metanephros比两栖动物的更为先进，反映了这些物种不同的环境适应和生理需求。总之，metanephros不仅仅是一个简单的解剖结构；它象征着遗传学、发育和进化之间的复杂相互作用。它在肾脏功能中的作用以及在医学研究中的潜力突显了深入理解这一器官的重要性。随着我们继续揭开与metanephros相关的复杂性，我们将更接近解决当今人类面临的一些最紧迫的健康挑战。围绕metanephros的发现之旅是生物科学奇迹及其对未来世代影响的证明。