ependyma

简明释义

英[ɪˈpendɪmə]美[epˈendɪmə;əˈpendəmə]

n. [解剖] 室管膜

英英释义

单词用法

同义词

反义词

例句

1.The ependyma of hypothalamic median eminence of the male rat was studied with scanning and transmission electron microscope.

对雄性大鼠正中隆起室管膜进行了透射和扫描电镜观察。

2.The dominant structures of ependyma of cerebral aqueduct in the rabbit are the cilia, microvilli, spherical structures and three types of the supraependymal cells that were observed with SEM and TEM.

以扫描与透射电镜观察家兔中脑水管室管膜上皮，主要有纤毛、微绒毛、花球状和泡球状结构，以及三种室管膜上细胞。

3.Observation of central canal ependyma of medulla oblongata in rat was carried out under transmissive electron microscope in the present study. Tanycytes were found mainly in the dorsal ependyma.

本文用透射电镜对大鼠延髓中央管室管膜作了观察，发现延髓中央管室管膜存在构造分区，即中央管背侧部室管膜细胞与腹侧部室管膜细胞在分布和排列上有差异。

4.C. Lesion enhances, ependyma does not.

病灶强化，室管膜不强化。

5.Nodes under the ependyma and nodes in the cortex were characteristic expressions in ct.

CT上有室管膜下钙化结节和皮质结节特征性表现。

6.The efferent fibers which projected from PVN to ependyma of the spinal cord perhaps released neurohormones into cerebrospinal fluid, thus having effects of regulation on the spinal cord.

脊髓室管膜的PVN传出纤维可能向脑脊液中释放神经激素，从而对脊髓发挥调节作用。

7.The cells lining the ventricles of the brain are known as ependyma, which is responsible for producing cerebrospinal fluid.

衬托大脑脑室的细胞被称为脊髓膜，负责产生脑脊液。

8.In histology, the study of ependyma helps us understand the function of the central nervous system.

在组织学中，研究脊髓膜有助于我们理解中枢神经系统的功能。

9.Damage to the ependyma can lead to complications in the flow of cerebrospinal fluid.

对脊髓膜的损伤可能导致脑脊液流动的并发症。

10.Researchers are investigating how the ependyma can regenerate after injury.

研究人员正在调查脊髓膜在受伤后如何再生。

11.The ependyma plays a crucial role in maintaining the homeostasis of the brain environment.

脊髓膜在维持大脑环境的稳态中起着至关重要的作用。

作文

The human brain is a complex organ that governs all our thoughts, actions, and emotions. One of the critical components of the brain is the ependyma, which plays a crucial role in maintaining the health of the central nervous system. The term ependyma refers to the thin layer of tissue that lines the ventricles of the brain and the central canal of the spinal cord. This layer is composed of specialized cells known as ependymal cells, which have unique functions that contribute to the overall functioning of the brain. Ependymal cells are essential for the production and circulation of cerebrospinal fluid (CSF), a clear fluid that cushions the brain and spinal cord, providing protection against injury. The CSF also serves to remove waste products from the brain and supply nutrients. Without the proper functioning of the ependyma, the flow of cerebrospinal fluid could be disrupted, leading to serious health issues such as hydrocephalus, characterized by an accumulation of fluid in the brain. In addition to their role in CSF production, the ependyma also acts as a barrier between the brain's tissues and the cerebrospinal fluid. This barrier is crucial for maintaining the brain's microenvironment, ensuring that the right balance of ions and molecules is preserved for optimal neuronal function. Furthermore, ependymal cells have cilia on their surface, which help to circulate the CSF throughout the ventricles, promoting efficient nutrient distribution and waste removal. Research has shown that the ependyma is not merely a passive lining but can respond to injury and disease. In cases of brain injury or neurodegenerative diseases, ependymal cells can undergo changes that may affect their function. For instance, they can become reactive and proliferate in response to damage, which may have implications for recovery and repair processes in the brain. Understanding the behavior of the ependyma in various conditions is a growing area of research, as scientists seek to uncover how these cells can be harnessed for therapeutic purposes. Moreover, the ependyma has been found to play a role in neurogenesis, the process of generating new neurons from stem cells. This discovery has significant implications for treating conditions like Alzheimer’s disease and other forms of dementia, where the loss of neurons contributes to cognitive decline. By exploring the potential of the ependyma in facilitating neurogenesis, researchers hope to develop innovative strategies to promote brain repair and regeneration. In conclusion, the ependyma is a vital component of the central nervous system, with functions that extend beyond mere structural support. Its involvement in the production of cerebrospinal fluid, maintenance of the brain's microenvironment, response to injury, and potential role in neurogenesis highlights its importance in both health and disease. As research continues to unfold, our understanding of the ependyma will undoubtedly lead to new insights into brain function and innovative approaches to treating neurological disorders. Through ongoing studies, we can appreciate the intricate workings of the brain and the significance of each component, including the often-overlooked ependyma.

人脑是一个复杂的器官，支配着我们所有的思想、行动和情感。大脑的一个关键组成部分是脊髓膜，它在维持中枢神经系统的健康中发挥着至关重要的作用。术语脊髓膜指的是衬里大脑室和脊髓中央管的薄组织层。这一层由称为脊髓膜细胞的特殊细胞组成，这些细胞具有独特的功能，有助于大脑的整体功能。 脊髓膜细胞对于脑脊液（CSF）的产生和循环至关重要，这是一种清澈的液体，可以缓冲大脑和脊髓，为其提供保护，以免受伤害。脑脊液还用于去除大脑中的废物并提供营养。如果脊髓膜的功能不正常，脑脊液的流动可能会受到干扰，导致严重的健康问题，如脑积水，表现为大脑内液体的积聚。 除了在脑脊液生产中的作用外，脊髓膜还充当大脑组织与脑脊液之间的屏障。这一屏障对于维持大脑的微环境至关重要，确保离子和分子的正确平衡得到保持，以实现最佳的神经元功能。此外，脊髓膜细胞表面有纤毛，这有助于在脑室中循环脑脊液，促进有效的营养分配和废物去除。 研究表明，脊髓膜不仅仅是一个被动的衬里，而是可以对损伤和疾病作出反应。在脑损伤或神经退行性疾病的情况下，脊髓膜细胞可能会发生变化，这可能影响它们的功能。例如，它们可以在损伤反应中变得活跃并增殖，这可能对大脑的恢复和修复过程产生影响。了解脊髓膜在各种条件下的行为是一个不断增长的研究领域，因为科学家们希望揭示这些细胞如何被利用于治疗目的。 此外，脊髓膜在神经发生中也发挥着作用，即从干细胞生成新神经元的过程。这一发现对治疗阿尔茨海默病和其他形式的痴呆症具有重要意义，因为神经元的丧失会导致认知能力下降。通过探索脊髓膜在促进神经发生中的潜力，研究人员希望开发创新策略，促进大脑的修复和再生。 总之，脊髓膜是中枢神经系统的重要组成部分，其功能超越了单纯的结构支持。它在脑脊液的产生、大脑微环境的维持、对损伤的反应以及在神经发生中的潜在作用，突显了它在健康和疾病中的重要性。随着研究的不断展开，我们对脊髓膜的理解无疑将导致对大脑功能的新见解，以及对治疗神经系统疾病的新方法。通过持续的研究，我们可以欣赏到大脑复杂的工作原理以及每个组成部分的重要性，包括常被忽视的脊髓膜。