episternum

简明释义

英[ˌepɪˈstɜːnəm]美[ˌepəˈstɜːrnəm]

n. 上胸骨；海胆的上腹板；[昆] 前侧片

复 数 e p i s t e r n u m s 或 e p i s t e r n a

英英释义

单词用法

同义词

反义词

例句

1.The bird's anatomy shows that the episternum 胸骨上骨 plays a crucial role in supporting the flight muscles.

鸟类的解剖表明，episternum 胸骨上骨 在支撑飞行肌肉方面起着至关重要的作用。

2.In many reptiles, the episternum 胸骨上骨 is reduced or absent, affecting their overall skeletal structure.

在许多爬行动物中，episternum 胸骨上骨 被减少或缺失，这影响了它们的整体骨骼结构。

3.During the dissection, we identified the episternum 胸骨上骨 as a key landmark for muscle attachment.

在解剖过程中，我们将 episternum 胸骨上骨 确定为肌肉附着的关键标志。

4.The episternum 胸骨上骨 is often used as a reference point in avian skeletal studies.

在鸟类骨骼研究中，episternum 胸骨上骨 通常被用作参考点。

5.Paleontologists study the episternum 胸骨上骨 to understand the evolution of flight in ancient birds.

古生物学家研究 episternum 胸骨上骨 以了解古代鸟类飞行的演化。

作文

The term episternum refers to a specific anatomical structure that is found in various organisms, particularly within the field of zoology. It is defined as a part of the skeletal system, specifically located in the thoracic region of certain animals. Understanding the episternum is crucial for those studying comparative anatomy and evolutionary biology, as it provides insights into how different species have adapted their body structures for various functions. In many vertebrates, the episternum serves as a vital component of the pectoral girdle. This structure supports the attachment of muscles and bones, allowing for efficient movement and stability. For instance, in birds, the episternum plays a significant role in flight mechanics. The unique shape and position of the episternum contribute to the overall aerodynamics of the bird's body, enhancing its ability to soar through the skies. Moreover, the study of the episternum can also shed light on the evolutionary relationships between different species. By comparing the episternum across various taxa, scientists can infer how certain traits have evolved over time. For example, the presence or absence of the episternum in certain fish species can indicate their adaptation to aquatic life, while its modification in terrestrial animals may suggest a shift towards land-based locomotion. In addition to its structural significance, the episternum can also be a site of interest in paleontology. Fossils that include well-preserved episternum structures can provide valuable information about the biology and ecology of extinct species. By analyzing these fossils, researchers can reconstruct ancient ecosystems and understand how different species interacted with their environment. Furthermore, the episternum has implications in medical research as well. In humans, while we do not possess an episternum in the same way as other animals, understanding similar structures in other species can inform us about our own evolutionary history. It can help us comprehend the development of our skeletal system and how certain medical conditions may arise from abnormalities in these structures. In conclusion, the episternum is more than just a technical term; it represents a critical aspect of anatomical study that bridges the gap between various fields of biology. From its role in supporting movement to its significance in understanding evolutionary processes, the episternum offers a wealth of information for scientists and researchers alike. As we continue to explore the intricacies of anatomy and evolution, the episternum will undoubtedly remain a focal point of inquiry, revealing the wonders of life and the complexity of biological systems.

术语episternum指的是在各种生物体中发现的特定解剖结构，特别是在动物学领域。它被定义为骨骼系统的一部分，具体位于某些动物的胸部区域。理解episternum对那些研究比较解剖学和进化生物学的人来说至关重要，因为它提供了不同物种如何适应其身体结构以实现各种功能的见解。 在许多脊椎动物中，episternum作为肩带的重要组成部分发挥着关键作用。该结构支持肌肉和骨骼的附着，使运动和稳定性更为高效。例如，在鸟类中，episternum在飞行力学中起着重要作用。episternum的独特形状和位置有助于鸟类身体的整体空气动力学，增强了其在天空中翱翔的能力。 此外，研究episternum也可以揭示不同物种之间的进化关系。通过比较不同分类群的episternum，科学家可以推断出某些特征是如何随着时间演变而来的。例如，某些鱼类物种中episternum的存在或缺失可能表明它们对水生生活的适应，而在陆生动物中其改造可能暗示向陆地运动的转变。 除了其结构的重要性外，episternum在古生物学中也是一个值得关注的研究对象。包含保存良好的episternum结构的化石可以提供有关灭绝物种生物学和生态学的宝贵信息。通过分析这些化石，研究人员可以重建古代生态系统，并了解不同物种如何与其环境互动。 此外，episternum在医学研究中也具有重要意义。虽然人类并不具备与其他动物相同方式的episternum，但理解其他物种中类似结构可以帮助我们了解自己的进化历史。这可以帮助我们理解我们骨骼系统的发展，以及某些医疗条件可能如何因这些结构的异常而产生。 总之，episternum不仅仅是一个技术术语；它代表了解剖学研究的一个关键方面，连接了生物学的多个领域。从支持运动的角色到理解进化过程的重要性，episternum为科学家和研究人员提供了丰富的信息。随着我们继续探索解剖学和进化的复杂性，episternum无疑将继续成为研究的焦点，揭示生命的奇迹和生物系统的复杂性。