branchial siphon

简明释义

鳃水管;

英英释义

例句

1.In some bivalves, the branchial siphon plays a crucial role in feeding by filtering plankton from the water.

在一些双壳类动物中，鳃虹吸管在通过从水中过滤浮游生物来进食方面起着至关重要的作用。

2.During respiration, the clam draws water in through its branchial siphon and extracts oxygen.

在呼吸过程中，蛤蜊通过其鳃虹吸管吸入水并提取氧气。

3.The branchial siphon can become clogged with debris, affecting the animal's ability to breathe.

鳃虹吸管可能会被碎屑堵塞，从而影响动物的呼吸能力。

4.The anatomy of the squid includes a well-developed branchial siphon for jet propulsion.

乌贼的解剖结构包括一个发达的鳃虹吸管用于喷射推进。

5.The octopus uses its branchial siphon to expel water quickly, allowing it to move rapidly away from predators.

章鱼利用它的鳃虹吸管快速排出水，从而迅速逃离捕食者。

作文

The ocean is a vast and mysterious world, teeming with life forms that have adapted to their environments in remarkable ways. Among these creatures are the tunicates, a group of marine invertebrates that exhibit fascinating biological features. One of the most intriguing aspects of tunicates is their anatomy, particularly the structure known as the branchial siphon. The branchial siphon (腮管) serves as an essential component of the tunicate's feeding and respiratory systems, allowing them to filter food particles from the water while simultaneously facilitating gas exchange.Tunicates, also known as sea squirts, have a unique lifecycle that includes both a larval and adult stage. During their larval stage, they possess a notochord and a tail, which enable them to swim freely in the ocean. However, once they settle on a substrate, they undergo a radical transformation into their adult form, losing their motility and developing a sac-like body. This transition allows them to take advantage of their environment more effectively, but it also necessitates the development of specialized structures like the branchial siphon (腮管).The branchial siphon is located at the top of the tunicate's body and plays a crucial role in how these animals feed. Water enters through the branchial siphon (腮管) and flows over the gill slits, where tiny food particles such as plankton are filtered out. The tunicate then expels the excess water through another opening called the atrial siphon. This efficient filtering system allows tunicates to thrive in various marine environments, from shallow coastal waters to the depths of the ocean.In addition to its role in feeding, the branchial siphon (腮管) is also vital for respiration. As water passes through the siphon, oxygen is absorbed by the blood vessels surrounding the gill slits, while carbon dioxide is expelled. This process highlights the dual functionality of the branchial siphon (腮管), showcasing how evolution has optimized the anatomy of tunicates for survival in aquatic habitats.Moreover, the study of the branchial siphon (腮管) and other anatomical features of tunicates provides valuable insights into the evolutionary history of chordates. Tunicates are considered to be closely related to vertebrates, sharing a common ancestor. Understanding the structure and function of the branchial siphon (腮管) can help scientists uncover the evolutionary pathways that led to the development of more complex organisms, including humans.In conclusion, the branchial siphon (腮管) is a remarkable adaptation that exemplifies the ingenuity of nature. It serves as a vital organ for feeding and respiration in tunicates, illustrating how these simple creatures have evolved to thrive in diverse marine environments. As we continue to explore the complexities of marine life, the study of structures like the branchial siphon (腮管) will undoubtedly contribute to our understanding of biological diversity and evolution.

海洋是一个广阔而神秘的世界，充满了以惊人方式适应其环境的生命形式。在这些生物中，海鞘是一类海洋无脊椎动物，它们展现了迷人的生物特征。海鞘最引人注目的方面之一是它们的解剖结构，特别是被称为腮管的结构。腮管（branchial siphon）是海鞘的喂食和呼吸系统的重要组成部分，使它们能够在过滤水中的食物颗粒的同时促进气体交换。海鞘，也被称为海绵，具有独特的生命周期，包括幼虫阶段和成体阶段。在幼虫阶段，它们拥有脊索和尾巴，使其能够在海洋中自由游动。然而，一旦它们定居在基质上，就会经历剧烈的转变，变成成年形态，失去运动能力，发展出囊状的身体。这一转变使它们能够更有效地利用环境，但也需要开发像腮管（branchial siphon）这样的专门结构。腮管（branchial siphon）位于海鞘身体的顶部，在这些动物的进食中起着至关重要的作用。水通过腮管（branchial siphon）进入，流经鳃裂，微小的食物颗粒如浮游生物在此被过滤掉。然后，海鞘通过另一个开口称为腔道（atrial siphon）排出多余的水。这种高效的过滤系统使得海鞘能够在从浅海到深海的各种海洋环境中茁壮成长。除了在喂食中的作用外，腮管（branchial siphon）对呼吸也至关重要。当水流过该管时，氧气被环绕在鳃裂周围的血管吸收，而二氧化碳则被排出。这个过程突显了腮管（branchial siphon）的双重功能，展示了进化如何优化海鞘的解剖结构以适应水生栖息地的生存。此外，对腮管（branchial siphon）及其他海鞘解剖特征的研究为我们提供了有关脊椎动物进化历史的宝贵见解。海鞘被认为与脊椎动物密切相关，分享一个共同的祖先。理解腮管（branchial siphon）的结构和功能可以帮助科学家揭示导致更复杂生物（包括人类）发展的进化路径。总之，腮管（branchial siphon）是一种显著的适应性，体现了自然的智慧。它作为海鞘的喂食和呼吸的重要器官，展示了这些简单生物如何进化以在多样的海洋环境中生存。随着我们继续探索海洋生命的复杂性，像腮管（branchial siphon）这样的结构的研究无疑将有助于我们理解生物多样性和进化。