tubules

简明释义

英[ˈtjuːbjuːlz]美[ˈtjuːbəlz]

n. [植]小管；（动植物的）细管（tubule 的复数）

英英释义

单词用法

同义词

反义词

例句

1.Conclusion Fluoride iontophoresis can effectively occlude the dentine tubules.

结论氟离子导入对于牙本质小管有一定封闭作用。

2.The shrimp hepatopancreas consists of a lot of epithelial tubules which are symmetrical.

肝胰腺由两侧对称的分枝上皮小管组成。

3.The development of mouse kidney tubules requires two kinds of differentiated cells.

小鼠肾小管的发育需要有两种分化的细胞。

4.The glomeruli and proximal convoluted tubules suffer most from this ischemia.

肾小球及近曲小管受缺血损害最重。

5.This is the histologic pattern of embryonal carcinoma. Sheets of blue cells are trying to form primitive tubules.

胚胎癌的组织学类型，一片蓝色的细胞正在形成原始的小管。

6.The kidney included renal corpuscle, renal tubules and lymphoid tissue, and it had no differentiation of cortex and medulla.

中肾包括肾小体、肾小管和填充于其间的拟淋巴组织，无皮质和髓质之分。

7.Nerve cells have long tubules that transmit signals.

神经细胞有长长的小管来传递信号。

8.The respiratory system includes tubules that carry air to the lungs.

呼吸系统包括将空气输送到肺部的小管。

9.The kidney contains many tiny tubules that help filter blood.

肾脏包含许多微小的小管，帮助过滤血液。

10.The tubules in the testis are essential for sperm production.

睾丸中的小管对精子生成至关重要。

11.In plants, water travels through tubules in the xylem.

在植物中，水通过木质部中的小管运输。

作文

In the intricate world of biology, the term tubules (小管) plays a significant role in understanding various physiological processes. Tubules are small, tube-like structures that can be found in different systems of the body, including the kidney, the respiratory system, and even within cells. Their primary function is to transport fluids and facilitate the movement of substances, which is crucial for maintaining homeostasis in living organisms.One of the most well-known examples of tubules (小管) is found in the nephron, the functional unit of the kidney. Within the nephron, there are several types of tubules (小管), such as the proximal convoluted tubule, loop of Henle, and distal convoluted tubule. Each of these tubules (小管) plays a unique role in the filtration and reabsorption processes that are essential for regulating water and electrolyte balance in the body. For instance, the proximal convoluted tubule (小管) is primarily responsible for reabsorbing nutrients like glucose and amino acids back into the bloodstream, while the loop of Henle concentrates urine by allowing water to be reabsorbed.In addition to their role in the kidneys, tubules (小管) are also integral to the respiratory system. The bronchial tubules (小管) branch out from the trachea and lead to the alveoli, where gas exchange occurs. These tubules (小管) ensure that air reaches the alveoli efficiently, facilitating the exchange of oxygen and carbon dioxide between the lungs and blood. Without properly functioning bronchial tubules (小管), our ability to breathe and maintain adequate oxygen levels would be severely compromised.Moreover, tubules (小管) are not limited to organ systems; they are also found within cells. For example, the endoplasmic reticulum (ER) consists of a network of membranous tubules (小管) that play a vital role in protein and lipid synthesis. The rough ER is studded with ribosomes, which are responsible for translating mRNA into proteins, while the smooth ER is involved in lipid metabolism and detoxification processes. These intracellular tubules (小管) are essential for cellular function and overall health.Understanding the structure and function of tubules (小管) helps us appreciate the complexity of biological systems. When these tubules (小管) become damaged or dysfunctional, it can lead to a variety of health issues. For instance, damage to the renal tubules (小管) can result in acute kidney injury, while dysfunction in the bronchial tubules (小管) can lead to conditions like asthma or chronic obstructive pulmonary disease (COPD).In conclusion, tubules (小管) are fundamental components of many biological systems, serving critical functions in transportation and regulation. Whether they are filtering waste in the kidneys, facilitating gas exchange in the lungs, or synthesizing proteins within cells, tubules (小管) are indispensable to life. By studying these structures, we gain insights into the workings of our bodies and the potential consequences of their malfunction. As we continue to explore the complexities of biology, the significance of tubules (小管) will undoubtedly remain a focal point for researchers and healthcare professionals alike.

在生物学的复杂世界中，术语tubules（小管）在理解各种生理过程方面发挥着重要作用。小管是可以在身体的不同系统中找到的小型管状结构，包括肾脏、呼吸系统，甚至细胞内部。它们的主要功能是运输液体并促进物质的移动，这对于维持生物体的稳态至关重要。一个众所周知的tubules（小管）例子是在肾单位中，肾单位是肾脏的功能单位。在肾单位内，有几种类型的tubules（小管），如近端曲小管、亨利氏环和远端曲小管。这些tubules（小管）每个在过滤和重吸收过程中都发挥独特的作用，这对于调节体内水分和电解质平衡至关重要。例如，近端曲小管主要负责将葡萄糖和氨基酸等营养物质重新吸收到血液中，而亨利氏环通过允许水被重吸收来浓缩尿液。除了在肾脏中的作用外，tubules（小管）在呼吸系统中也至关重要。支气管tubules（小管）从气管分支出来，通向肺泡，在那里发生气体交换。这些tubules（小管）确保空气有效地到达肺泡，促进氧气和二氧化碳在肺部和血液之间的交换。如果支气管tubules（小管）不能正常运作，我们的呼吸能力和维持足够氧气水平的能力将受到严重影响。此外，tubules（小管）不仅限于器官系统；它们也存在于细胞内。例如，内质网（ER）由一系列膜状tubules（小管）组成，发挥着蛋白质和脂质合成的重要作用。粗糙内质网上布满了核糖体，负责将mRNA翻译成蛋白质，而光滑内质网则参与脂质代谢和解毒过程。这些细胞内的tubules（小管）对细胞功能和整体健康至关重要。理解tubules（小管）的结构和功能帮助我们欣赏生物系统的复杂性。当这些tubules（小管）受损或功能失常时，可能导致各种健康问题。例如，肾小管的损伤可能导致急性肾损伤，而支气管tubules（小管）的功能障碍可能导致哮喘或慢性阻塞性肺病（COPD）等疾病。总之，tubules（小管）是许多生物系统的基本组成部分，在运输和调节中发挥着关键作用。无论它们是在肾脏中过滤废物、在肺部促进气体交换，还是在细胞内合成蛋白质，tubules（小管）对生命都是不可或缺的。通过研究这些结构，我们获得了对我们身体运作及其功能失常潜在后果的深入了解。随着我们继续探索生物学的复杂性，tubules（小管）的重要性无疑将继续成为研究人员和医疗专业人员关注的焦点。