microtomy

简明释义

英[maɪˈkrɒtəmi]美[maɪˈkrɑːtəmi]

n. 切片法

英英释义

单词用法

同义词

反义词

例句

1.The freezing microtomy was used to find the influence of various alcohols on skin.

冷冻切片考察各种溶剂对皮肤结构的影响。

2.The anatomical structures of leaves and roots of Coptis chinensis were studied by the method of paraffin microtomy and optical microscopic observation.

通过石蜡切片法制片，光学显微镜观察，研究了黄连叶、根的形态解剖结构。

3.After microtomy the sulphur is sublimed away under vacuum.

在完成切片后，可在真空下将硫升华除掉。

4.Microtomy with a diamond Knife permits to prepare thin foils Samples with high transparency of electron, good parallelism and have a clean Surface.

用金刚石刀超薄切片法制备的薄膜样品电子透明度高，平行度好，而且具有清洁的表面。

5.Rapid freezing microtomy during surgery is a kind of reliable method to distinguish the essence of the tumor in operation;

术中快速冻结切片是术中鉴别肿瘤性质的可靠方法；

6.Skin sections were made using paraffin microtomy.

用石蜡切片法制做皮肤切片。

7.The anatomical structures of leaves and roots of Coptis chinensis were studied by the method of paraffin microtomy and optical microscopic observation.

通过石蜡切片法制片，光学显微镜观察，研究了黄连叶、根的形态解剖结构。

8.We need to calibrate the microtome before starting the microtomy 切片术 procedure.

在开始切片术程序之前，我们需要校准切片机。

9.A skilled technician performs microtomy 切片术 to ensure high-quality tissue slices.

一名熟练的技术员进行切片术，以确保高质量的组织切片。

10.The process of microtomy 切片术 is essential for preparing tissue samples for microscopic examination.

切片术的过程对于准备组织样本以供显微镜检查至关重要。

11.In our lab, we use microtomy 切片术 to create thin sections of biological specimens.

在我们的实验室中，我们使用切片术来制作生物标本的薄切片。

12.The accuracy of microtomy 切片术 can significantly affect the results of histological studies.

切片术的准确性会显著影响组织学研究的结果。

作文

In the realm of biological sciences, the term microtomy refers to the process of cutting thin sections of biological specimens for microscopic examination. This technique is crucial in histology, the study of tissues, as it allows researchers and medical professionals to observe the intricate details of cellular structures. The significance of microtomy extends beyond mere observation; it plays a vital role in diagnosing diseases, understanding developmental biology, and facilitating research in various fields such as pathology and anatomy.The process of microtomy involves several steps, starting with the preparation of the specimen. Tissues must first be preserved using a process called fixation, which stabilizes the cell structures and prevents decomposition. Common fixatives include formaldehyde and paraformaldehyde. Once fixed, the tissue is often embedded in a solid medium, typically paraffin wax, to provide support during the cutting process.After embedding, the specimen is cooled and hardened, making it easier to slice into thin sections. A specialized instrument known as a microtome is then used to cut the specimen into extremely thin slices, usually between 5 to 50 micrometers thick. These sections are so thin that light can pass through them, allowing for detailed observation under a microscope. The precision of microtomy is essential, as even slight variations in thickness can affect the quality of the microscopic image.Once the sections are prepared, they are mounted on glass slides and stained to enhance contrast. Staining is a critical step in microtomy, as different stains highlight various cellular components, making it easier to identify structures such as nuclei, cytoplasm, and extracellular matrix. Common stains used in histology include Hematoxylin and Eosin (H&E), which provide a general overview of tissue architecture, and special stains that target specific cell types or components.The applications of microtomy are vast and varied. In clinical settings, pathologists rely on this technique to diagnose diseases such as cancer. By examining tissue samples from biopsies, they can determine the presence of abnormal cells and make informed decisions about treatment options. In research, microtomy is instrumental in studying the effects of drugs on tissues, understanding disease mechanisms, and exploring developmental processes in various organisms.Moreover, advances in technology have led to the development of new techniques in microtomy, such as cryo-microtomy, which involves cutting frozen tissue samples. This method preserves the natural state of the tissues better than traditional methods and allows for the analysis of proteins and other molecules within the cells.In conclusion, microtomy is an indispensable technique in the field of biological sciences. Its ability to produce thin sections of tissues for microscopic examination has revolutionized our understanding of biology and medicine. As research continues to evolve, the importance of microtomy will undoubtedly grow, paving the way for new discoveries and advancements in health care and scientific inquiry. Through meticulous preparation and cutting, microtomy opens a window into the microscopic world, revealing the complexities of life at the cellular level.

在生物科学领域，术语微切片技术指的是为显微镜检查而切割生物标本薄片的过程。这项技术在组织学中至关重要，组织学是研究组织的学科，因为它使研究人员和医疗专业人员能够观察细胞结构的复杂细节。微切片技术的重要性不仅仅在于观察；它在诊断疾病、理解发育生物学以及促进病理学和解剖学等多个领域的研究中发挥着重要作用。微切片技术的过程包括几个步骤，首先是标本的准备。组织必须首先通过一种称为固定的过程进行保存，以稳定细胞结构并防止分解。常用的固定剂包括甲醛和多聚甲醛。一旦固定，组织通常会嵌入固体介质中，通常是石蜡，以在切割过程中提供支持。在嵌入之后，标本被冷却和硬化，使其更容易切成薄片。然后使用一种专门的仪器，即切片机，将标本切割成极薄的切片，通常厚度在5到50微米之间。这些切片薄到光线可以透过它们，从而允许在显微镜下进行详细观察。微切片技术的精确性至关重要，因为即使是微小的厚度变化也可能影响显微图像的质量。一旦切片准备好，它们就会被安装在玻璃载玻片上并进行染色以增强对比度。染色是微切片技术中的关键步骤，因为不同的染色剂突出显示各种细胞成分，使识别细胞核、细胞质和细胞外基质等结构变得更容易。组织学中常用的染色剂包括苏木精-伊红（H&E），它们提供了组织结构的总体概述，以及针对特定细胞类型或成分的特殊染色。微切片技术的应用广泛而多样。在临床环境中，病理学家依赖这项技术来诊断癌症等疾病。通过检查活检的组织样本，他们可以确定异常细胞的存在，并就治疗方案做出明智的决策。在研究中，微切片技术对于研究药物对组织的影响、理解疾病机制以及探索各种生物体的发育过程至关重要。此外，技术的进步导致了微切片技术中新技术的发展，例如冷冻切片技术，这涉及切割冷冻的组织样本。这种方法比传统方法更好地保持了组织的自然状态，并允许分析细胞内的蛋白质和其他分子。总之，微切片技术是生物科学领域中不可或缺的技术。它能够产生用于显微镜检查的组织薄片，彻底改变了我们对生物学和医学的理解。随着研究的不断发展，微切片技术的重要性无疑将与日俱增，为医疗保健和科学研究的新发现和进展铺平道路。通过细致的准备和切割，微切片技术为微观世界打开了一扇窗，揭示了细胞水平上生命的复杂性。