atrio ventricular bundle

简明释义

房室束

英英释义

例句

1.During an ECG, abnormalities in the atrio ventricular bundle can indicate potential heart issues.

在心电图检查中，房室束的异常可能表明潜在的心脏问题。

2.In some cases, surgery may be required to repair a damaged atrio ventricular bundle.

在某些情况下，可能需要手术来修复受损的房室束。

3.The electrical signals in the heart travel through the atrio ventricular bundle, which is crucial for coordinating heartbeats.

心脏中的电信号通过房室束传递，这对协调心跳至关重要。

4.Patients with heart block often have issues with their atrio ventricular bundle functioning properly.

患有心脏传导阻滞的患者通常会出现房室束功能不正常的问题。

5.The doctor explained that a blockage in the atrio ventricular bundle could lead to arrhythmias.

医生解释说，房室束的阻塞可能导致心律失常。

作文

The heart is a remarkable organ that plays a crucial role in maintaining the circulation of blood throughout the body. One of the essential components of the heart's electrical system is the atrio ventricular bundle, which is also known as the bundle of His. This structure is vital for coordinating the contraction of the heart chambers, ensuring that blood is pumped effectively to both the lungs and the rest of the body. To understand the significance of the atrio ventricular bundle, it is important to first grasp the basic anatomy of the heart. The heart consists of four chambers: the right atrium, right ventricle, left atrium, and left ventricle. The upper chambers, the atria, receive blood returning to the heart, while the lower chambers, the ventricles, pump blood out of the heart. The heart's rhythm is regulated by electrical impulses that originate from the sinoatrial (SA) node, often referred to as the natural pacemaker of the heart. These impulses travel through the atria, causing them to contract and push blood into the ventricles.Once the blood fills the ventricles, the electrical impulses reach the atrio ventricular bundle. This bundle is located between the atria and ventricles and serves as a critical pathway for the electrical signals to move from the atria to the ventricles. The atrio ventricular bundle splits into two branches, known as the right and left bundle branches, which extend into the respective ventricles. This branching ensures that the electrical impulses are distributed evenly, allowing both ventricles to contract simultaneously and efficiently pump blood to the lungs and the rest of the body.If there is a malfunction or blockage in the atrio ventricular bundle, it can lead to serious heart conditions such as heart block. In heart block, the electrical signals are delayed or completely blocked from reaching the ventricles, resulting in an irregular heartbeat or even a complete stop in ventricular contractions. This can cause symptoms such as dizziness, fatigue, and in severe cases, fainting or sudden cardiac arrest. Therefore, understanding the function of the atrio ventricular bundle is essential for recognizing and treating various cardiac disorders.In addition to its role in conducting electrical impulses, the atrio ventricular bundle is also a focal point for medical interventions. For example, in patients with significant heart block, doctors may recommend the implantation of a pacemaker, a device that helps regulate the heart's rhythm by sending electrical signals to stimulate the heart muscle. This intervention underscores the importance of the atrio ventricular bundle in maintaining a healthy heart rhythm and overall cardiovascular health.In conclusion, the atrio ventricular bundle is a vital component of the heart's electrical conduction system, playing an indispensable role in coordinating the contractions of the heart's chambers. Understanding its function not only provides insight into the intricate workings of the heart but also highlights the potential consequences of dysfunction within this crucial structure. As research continues to advance our knowledge of cardiac physiology, the atrio ventricular bundle will undoubtedly remain a key focus in both clinical practice and scientific exploration.

心脏是一个非凡的器官，在维持全身血液循环中发挥着至关重要的作用。心脏电气系统的一个基本组成部分是房室束，也被称为希斯束。这个结构对于协调心脏腔室的收缩至关重要，确保血液有效地被泵送到肺部和全身。要理解房室束的重要性，首先需要掌握心脏的基本解剖结构。心脏由四个腔室组成：右心房、右心室、左心房和左心室。上腔室，即心房，接收回到心脏的血液，而下腔室，即心室，则将血液泵出心脏。心脏的节奏由起源于窦房结（SA结）的电信号调节，通常被称为心脏的自然起搏器。这些信号通过心房传播，使心房收缩并将血液推入心室。当血液充满心室时，电信号到达房室束。这个束位于心房和心室之间，作为电信号从心房传递到心室的关键通道。房室束分为两个分支，称为右束支和左束支，延伸到相应的心室。这种分支确保电信号均匀分布，使两个心室能够同时收缩，有效地将血液泵送到肺部和全身。如果房室束出现故障或阻塞，可能导致严重的心脏病状况，如心脏传导阻滞。在心脏传导阻滞中，电信号被延迟或完全阻断，无法到达心室，导致心率不规律，甚至心室收缩完全停止。这可能会引发头晕、疲劳等症状，在严重情况下，可能导致晕厥或突发心脏骤停。因此，了解房室束的功能对识别和治疗各种心脏疾病至关重要。除了在传导电信号中的作用外，房室束也是医学干预的焦点。例如，在有显著心脏传导阻滞的患者中，医生可能会建议植入起搏器，这是一种通过向心肌发送电信号来帮助调节心脏节律的设备。这一干预强调了房室束在维持健康心脏节律和整体心血管健康中的重要性。总之，房室束是心脏电传导系统的一个重要组成部分，在协调心脏腔室的收缩中发挥着不可或缺的作用。理解其功能不仅提供了对心脏复杂运作的洞察，还突显了这一关键结构功能失调的潜在后果。随着研究不断推进我们对心脏生理学的认识，房室束无疑将继续成为临床实践和科学探索的重点。