depolarize

简明释义

英[diːˈpəʊləraɪz]美[diˈpoləˌraɪz]

vt. 去偏光；去偏极

第 三 人 称 单 数 d e p o l a r i z e s

现 在 分 词 d e p o l a r i z i n g

过 去 式 d e p o l a r i z e d

过 去 分 词 d e p o l a r i z e d

英英释义

单词用法

同义词

反义词

例句

1.The principle to depolarize the monochromatic light using the the the characteristic of liquid crystal has been studied.

理论研究了利用液晶的偏振特性对单色光进行退偏原理。

2.The principle to depolarize the monochromatic light using the the the characteristic of liquid crystal has been studied.

理论研究了利用液晶的偏振特性对单色光进行退偏原理。

3.The application of a strong electrical stimulus can cause the neurons to depolarize.

强电刺激的应用可以使神经元去极化。

4.During an action potential, sodium ions rush into the cell, leading the membrane to depolarize.

在动作电位期间，钠离子涌入细胞，导致膜去极化。

5.When the membrane potential reaches a threshold, it triggers the cells to depolarize.

当膜电位达到阈值时，会触发细胞去极化。

6.A decrease in potassium levels can cause muscle cells to depolarize more easily.

钾水平的降低可以使肌肉细胞更容易去极化。

7.Certain drugs can affect how quickly the heart's cells depolarize.

某些药物可以影响心脏细胞去极化的速度。

作文

In the realm of neuroscience, the term depolarize refers to a crucial process that occurs when a neuron's membrane potential becomes less negative, moving closer to zero. This phenomenon is essential for the transmission of nerve impulses and plays a significant role in how our brains communicate with the rest of our bodies. Understanding the concept of depolarize is vital for anyone interested in biology or medicine, as it underpins many physiological processes. When a neuron is at rest, it maintains a negative charge inside compared to the outside environment, a state known as resting potential. However, when a stimulus occurs, ion channels in the neuron's membrane open, allowing positively charged ions (such as sodium) to flow into the cell. This influx of positive ions causes the neuron's internal environment to become less negative, a process we describe as depolarize. The significance of this change cannot be overstated; it is the initial step in generating an action potential, which is the electrical signal that travels along the axon of the neuron.The process of depolarize is not limited to neurons. It also occurs in muscle cells, where it triggers contraction. For example, during a heartbeat, the heart's pacemaker cells undergo depolarize to initiate each contraction, ensuring that blood is pumped effectively throughout the body. This illustrates how the concept of depolarize extends beyond neural communication to encompass vital functions in other systems as well.Moreover, understanding how depolarize works can help in medical diagnoses and treatments. For instance, certain drugs are designed to affect ion channels, thereby influencing the depolarization of neurons. Antiepileptic medications, for instance, may stabilize neuronal membranes to prevent excessive depolarize and subsequent seizures. Similarly, local anesthetics work by blocking sodium channels, preventing depolarize from occurring in pain-transmitting neurons, thus providing pain relief.In summary, the term depolarize encapsulates a fundamental process in both the nervous and muscular systems, facilitating communication and function within the body. By studying this process, we gain insights into how our bodies operate and how we can intervene medically when things go awry. Whether one is pursuing a career in healthcare, research, or simply seeking to understand the human body better, grasping the concept of depolarize is indispensable. The implications of this process are vast, affecting everything from basic bodily functions to complex neurological disorders. Therefore, continued exploration of depolarize and its effects will undoubtedly yield valuable knowledge for future advancements in science and medicine.

在神经科学领域，术语去极化指的是一个重要的过程，当神经元的膜电位变得不那么负，接近于零时，就会发生这种情况。这个现象对于神经冲动的传递至关重要，并在我们的脑部与身体其他部分的沟通中发挥着重要作用。理解去极化的概念对于任何对生物学或医学感兴趣的人来说都是至关重要的，因为它是许多生理过程的基础。当神经元处于静息状态时，它会保持内部相对于外部环境的负电荷，这种状态称为静息电位。然而，当刺激发生时，神经元膜中的离子通道打开，允许带正电的离子（如钠）流入细胞。这种正离子的流入导致神经元内部环境变得不那么负，这一过程称为去极化。这种变化的重要性不容小觑；这是产生动作电位的初始步骤，而动作电位是沿着神经元轴突传播的电信号。去极化的过程不仅限于神经元。它也发生在肌肉细胞中，触发收缩。例如，在心跳过程中，心脏的起搏细胞经历去极化以启动每次收缩，确保血液有效地泵送到全身。这说明了去极化的概念不仅限于神经通信，还涵盖了其他系统中的重要功能。此外，理解去极化的工作方式有助于医疗诊断和治疗。例如，某些药物旨在影响离子通道，从而影响神经元的去极化。抗癫痫药物可能通过稳定神经膜来防止过度去极化和随之而来的癫痫发作。同样，局部麻醉剂通过阻断钠通道来工作，从而防止疼痛传导神经元发生去极化，从而提供疼痛缓解。总之，术语去极化概括了神经和肌肉系统中的一个基本过程，促进了身体内的沟通和功能。通过研究这个过程，我们可以深入了解我们身体的运作方式，以及在出现问题时如何进行医学干预。无论一个人是追求医疗、研究的职业，还是仅仅希望更好地理解人体，掌握去极化的概念都是不可或缺的。这个过程的影响是广泛的，涉及从基本的身体功能到复杂的神经系统疾病。因此，继续探索去极化及其影响无疑将为未来科学和医学的进步提供宝贵的知识。