ambulacral tunnel

简明释义

步带通道;

英英释义

例句

1.The anatomy of echinoderms includes a complex network of the ambulacral tunnel 胼胝管 and radial canals.

棘皮动物的解剖结构包括复杂的胼胝管 胼胝管和放射管道网络。

2.The starfish uses its tube feet to move along the ocean floor, which are connected to the ambulacral tunnel 胼胝管.

海星利用它的管足在海底移动，这些管足与胼胝管 胼胝管相连。

3.Researchers observed that the ambulacral tunnel 胼胝管 plays a crucial role in the locomotion of sea stars.

研究人员观察到，胼胝管 胼胝管在海星的运动中起着至关重要的作用。

4.During our marine biology class, we learned how the ambulacral tunnel 胼胝管 helps in the feeding process of echinoderms.

在我们的海洋生物学课上，我们学习了胼胝管 胼胝管如何帮助棘皮动物的进食过程。

5.An injury to the ambulacral tunnel 胼胝管 can affect the movement of a sea cucumber.

对胼胝管 胼胝管的损伤会影响海参的运动。

作文

The ocean is home to a myriad of fascinating creatures, each with unique adaptations that allow them to thrive in their aquatic environments. One such creature is the echinoderm, which includes starfish, sea urchins, and sea cucumbers. Among the various anatomical features of echinoderms, the ambulacral tunnel plays a crucial role in their survival. Understanding the structure and function of the ambulacral tunnel can provide insight into the complex biology of these marine animals.The ambulacral tunnel is a vital part of the water vascular system in echinoderms. This system is responsible for locomotion, feeding, and gas exchange. The ambulacral tunnel runs along the underside of the arms of starfish and other echinoderms, housing tube feet that extend outward to help the animal move and interact with its environment. These tube feet operate through hydraulic pressure created by the seawater that enters the water vascular system.In essence, the ambulacral tunnel is a channel that facilitates the movement of seawater, allowing echinoderms to control their tube feet effectively. When the animal wants to move, it contracts muscles surrounding the ambulacral tunnel, forcing water into the tube feet. This action causes the tube feet to extend, enabling the echinoderm to grip surfaces or propel itself forward. Conversely, when the animal relaxes these muscles, the tube feet retract, allowing for controlled movement.Moreover, the ambulacral tunnel also plays a significant role in feeding. Many echinoderms are scavengers or predators, and they use their tube feet to manipulate food items. For instance, a starfish can use its tube feet to pry open the shells of bivalves, exposing the soft tissue inside. The ambulacral tunnel thus not only aids in locomotion but also enhances the echinoderm's ability to forage for food.The evolutionary significance of the ambulacral tunnel cannot be overlooked. It represents a sophisticated adaptation that has allowed echinoderms to occupy diverse ecological niches. The presence of this structure has enabled these organisms to develop unique feeding strategies and enhance their mobility in various marine environments. As such, studying the ambulacral tunnel provides valuable insights into the evolutionary history and ecological roles of echinoderms.In conclusion, the ambulacral tunnel is a remarkable feature of echinoderms that exemplifies the intricate relationship between anatomy and function in marine organisms. By facilitating movement and feeding, the ambulacral tunnel demonstrates how specialized structures can contribute to the survival and success of a species. As we continue to explore the oceans and uncover the mysteries of its inhabitants, understanding features like the ambulacral tunnel will be essential in appreciating the complexity of marine life and the evolutionary processes that shape it.

海洋是无数迷人生物的家园，每种生物都有独特的适应能力，使它们能够在水生环境中生存。其中一种生物是棘皮动物，包括海星、海胆和海参。在棘皮动物的各种解剖特征中，ambulacral tunnel（胼胝道）在它们的生存中起着至关重要的作用。理解ambulacral tunnel的结构和功能可以深入了解这些海洋动物复杂的生物学。ambulacral tunnel是棘皮动物水管系统的重要组成部分。这个系统负责运动、进食和气体交换。ambulacral tunnel沿着海星和其他棘皮动物的臂部底部延伸，容纳向外伸展的管足，帮助动物移动并与环境互动。这些管足通过海水进入水管系统所产生的液压压力来运作。本质上，ambulacral tunnel是一个通道，促进海水的流动，使棘皮动物能够有效地控制其管足。当动物想要移动时，它会收缩围绕ambulacral tunnel的肌肉，将水压入管足。这一动作导致管足伸展，使棘皮动物能够抓住表面或向前推进。相反，当动物放松这些肌肉时，管足会收回，从而允许控制运动。此外，ambulacral tunnel在进食中也发挥着重要作用。许多棘皮动物是拾荒者或捕食者，它们利用管足来操控食物。例如，海星可以使用其管足撬开双壳类的外壳，暴露出内部的软组织。因此，ambulacral tunnel不仅有助于运动，还增强了棘皮动物觅食的能力。ambulacral tunnel的进化意义不容忽视。它代表了一种复杂的适应，使棘皮动物能够占据多样的生态位。该结构的存在使这些生物能够发展出独特的觅食策略，并增强它们在各种海洋环境中的移动能力。因此，研究ambulacral tunnel提供了对棘皮动物进化历史和生态角色的宝贵见解。总之，ambulacral tunnel是棘皮动物的一项显著特征，体现了海洋生物中解剖与功能之间的复杂关系。通过促进运动和进食，ambulacral tunnel展示了专门结构如何有助于物种的生存和成功。随着我们继续探索海洋并揭示其居民的奥秘，理解像ambulacral tunnel这样的特征将对欣赏海洋生命的复杂性及其塑造的进化过程至关重要。