depolarization

简明释义

英[ˈdɪˌpəʊləraɪˈzeɪʃən]美[ˈdiˌpolərɪˈzeʃən]

n. 去极；去偏极

英英释义

单词用法

同义词

反义词

例句

1.These theoretical results offer a good reference value for design combination wave-plate depolarization.

这些理论结果对复合波片退偏器的设计具有好的参考价值。

2.The design method and conclusion presented in this paper may contribute to the depolarization design for the pump laser of Raman amplifiers.

文中的设计方法和结论对拉曼放大器的泵浦光源退偏设计具有一定参考作用。

3.As the interval between QRS waves and T wave in ECG, QT interval represents the depolarization of ventricle.

QT间期指心电波形中QRS波起点到T波终点这一段所对应的时间间隔，代表心室去极化过程。

4.Hydrogen depolarization and sulfide corrosion are considered to be the main reaction involved in corrosion.

腐蚀是由氢的去极化反应和硫化物引起的。

5.The crystal structure, and piezoelectric properties and depolarization temperature of the ceramics were investigated.

研究了该体系陶瓷微观结构、压电性能和退极化温度变化规律。

6.Repetitive firing can be induced by a sustained depolarizing stimulation in DRG neurons with frequency proportional to the intensity of depolarization.

持续去极化电流刺激可诱发DRG神经元发生重复放电，其放电频率与去极化程度成正比。

7.The experimental results showed that effects of fog concentration on the degree of depolarization were as well as Monte Carlo simulation.

由于自然条件的限制，人们在研究雾对激光传输的影响时，常用人工方式产生的雾来模拟自然雾的作用。

8.Repetitive firing can be induced by a sustained depolarizing stimulation in DRG neurons with frequency proportional to the intensity of depolarization.

持续去极化电流刺激可诱发DRG神经元发生重复放电，其放电频率与去极化程度成正比。

9.Objective To get a new calculating measurement of cardiac potential on body surface produced by depolarization of ventricle.

目的由心室除极产生体表电势的新计算方法。

10.During an action potential, the neuron undergoes depolarization, which is a rapid change in membrane potential.

在动作电位期间，神经元经历了去极化，这是一种膜电位的快速变化。

11.The depolarization of cardiac muscle cells is essential for the heartbeat to occur.

心肌细胞的去极化对心跳的发生至关重要。

12.When a stimulus is applied, it can lead to depolarization and trigger a nerve impulse.

当施加刺激时，它可以导致去极化并触发神经冲动。

13.In electrocardiograms, depolarization is represented by the QRS complex.

在心电图中，去极化由QRS波群表示。

14.Certain drugs can affect the depolarization process in neurons, altering their excitability.

某些药物可以影响神经元的去极化过程，从而改变它们的兴奋性。

作文

Depolarization is a fundamental concept in the field of biology, particularly in neuroscience and muscle physiology. It refers to the process by which a cell's membrane potential becomes less negative, moving closer to zero. This change in electrical charge across the membrane is crucial for the functioning of neurons and muscle cells. When a neuron is at rest, it typically has a negative internal environment compared to the outside. However, during the process of depolarization (去极化), sodium channels open, allowing positively charged sodium ions to flow into the cell. This influx of positive charge causes the internal environment to become less negative, leading to a significant change in the membrane potential. The significance of depolarization (去极化) can be observed during the generation of action potentials in neurons. An action potential is a rapid rise and fall in voltage across a cellular membrane that allows for the transmission of signals within the nervous system. When a stimulus is strong enough to reach a certain threshold, depolarization (去极化) occurs, resulting in the firing of the neuron. This is essential for communication between neurons, as the action potential travels along the axon and triggers the release of neurotransmitters at synapses. In muscle cells, depolarization (去极化) plays a similar role. When a muscle cell is stimulated by a nerve impulse, the same process occurs. The influx of sodium ions leads to depolarization (去极化), which ultimately results in muscle contraction. This is a vital process in all forms of movement, from voluntary actions like walking to involuntary actions like the heartbeat. Understanding depolarization (去极化) is also important in the context of medical science. Abnormalities in the depolarization (去极化) process can lead to various health issues. For instance, irregularities in cardiac depolarization (去极化) can result in arrhythmias, which are disruptions in the heart's rhythm. Similarly, neurological disorders may arise from problems with neuronal depolarization (去极化), affecting how signals are transmitted in the brain. In summary, depolarization (去极化) is a critical process in both the nervous system and muscular systems. It enables the transmission of electrical signals and muscle contractions, making it essential for many bodily functions. By understanding this concept, we can gain insights into how our bodies operate and how various conditions can affect our health. The mechanisms underlying depolarization (去极化) highlight the intricate balance of electrical charges that sustain life and facilitate communication within our biological systems.

去极化是生物学领域，特别是神经科学和肌肉生理学中的一个基本概念。它指的是细胞膜电位变得不那么负值的过程，向零移动。这种膜电荷的变化对神经元和肌肉细胞的功能至关重要。当神经元处于静息状态时，通常内部环境相对于外部环境是负的。然而，在去极化过程中，钠通道打开，允许带正电的钠离子流入细胞。这种正电荷的涌入使内部环境变得不那么负，从而导致膜电位发生显著变化。 去极化的重要性可以在神经元动作电位的生成中观察到。动作电位是细胞膜电压的快速上升和下降，允许神经系统内信号的传递。当刺激强度足够高以达到某个阈值时，去极化发生，导致神经元发放。这对于神经元之间的通信至关重要，因为动作电位沿着轴突传播，并在突触处触发神经递质的释放。 在肌肉细胞中，去极化发挥着类似的作用。当肌肉细胞受到神经冲动刺激时，发生相同的过程。钠离子的涌入导致去极化，最终导致肌肉收缩。这一过程对于所有形式的运动至关重要，从自愿的行为如走路到非自愿的行为如心跳。 理解去极化在医学科学中也很重要。去极化过程中的异常可能导致各种健康问题。例如，心脏去极化的异常可能导致心律失常，即心脏节律的干扰。同样，神经系统疾病可能源于神经元去极化的问题，影响大脑中信号的传递。 总之，去极化是神经系统和肌肉系统中的一个关键过程。它使电信号的传递和肌肉收缩成为可能，对于许多身体功能至关重要。通过理解这个概念，我们可以深入了解我们身体的运作方式，以及各种情况如何影响我们的健康。支撑去极化的机制揭示了维持生命和促进我们生物系统内通信的电荷平衡的复杂性。