sinoatrial

简明释义

英[ˌsaɪnoʊˈeɪtriəl]美[ˌsaɪnoʊˈeɪtriəl]

adj. 窦房的

英英释义

单词用法

同义词

反义词

例句

1.This study reports the results of sinus node electrogram (SNE) by electrode catheterization and directly measured sinoatrial conduction lime (SACT_D) in 48 patients.

本文报告对48例患者，右心导管法描记窦房结电图(SNE)及直按测定窦房传导时间(SACT_D)的结果。

2.It is characterized by sinoatrial node dysfunction and often includes atrioventricular node disease and bundle branch block.

它的特征是窦房结功能障碍并常伴有房室结疾病和束支传导阻滞。

3.Objective: To study the effect of Bingdoukang Oral Solution (hereinafter referred to as BDK) on rabbits induced with acute injury of sinoatrial node.

目的：研究病窦康口服液对家兔窦房结急性损伤的影响。

4.The sinoatrial node is located at the junction of the superior vena cava and the right atrium.

窦房结位于上腔静脉与右心房的交界处。

5.Rabbit brady arrhythmia model due to acute sinoatrial node damage was made by overlaying 30% formaldehyde on the surface of sinoatrial node area.

用30%甲醛外敷窦房结区表面，造家兔窦房结急性损伤致缓慢型心律失常模型。

6.Conclusion the results suggest that dle effect of parasympathetic nerve activity on atrioventricular node function is larger than that of sinoatrial node.

结论提示迷走神经对房室结功能影响大于对窦房结功能影响。

7.Conclusion Hyperthyroidism presenting as bradycardia is related to the sinoatrial node function.

结论甲亢可影响窦房结功能使其心动过缓。

8.The heart's rhythm is primarily controlled by the sinoatrial 窦房 node.

心脏的节奏主要由sinoatrial 窦房结控制。

9.The sinoatrial 窦房 node initiates each heartbeat.

sinoatrial 窦房结启动每一次心跳。

10.An ECG can help detect issues with the sinoatrial 窦房 node.

心电图可以帮助检测sinoatrial 窦房结的问题。

11.In some patients, a pacemaker may be needed if the sinoatrial 窦房 node fails.

在某些患者中，如果sinoatrial 窦房结失效，可能需要安装起搏器。

12.Damage to the sinoatrial 窦房 node can lead to arrhythmias.

sinoatrial 窦房结的损伤可能导致心律失常。

作文

The human heart is a remarkable organ that plays a crucial role in maintaining the circulation of blood throughout the body. One of the key components of the heart's electrical conduction system is the *sinoatrial* node, often referred to as the SA node. This small cluster of cells is located in the right atrium and is responsible for initiating the heartbeat. Understanding the function of the *sinoatrial* node is essential for grasping how the heart operates and how various conditions can affect its performance.The *sinoatrial* node acts as the natural pacemaker of the heart. It generates electrical impulses that spread through the atria, causing them to contract and push blood into the ventricles. This process is vital for maintaining an efficient and coordinated heartbeat. When the *sinoatrial* node fires, it sets off a chain reaction that ultimately leads to the contraction of the ventricles, ensuring that blood is pumped effectively to the lungs and the rest of the body.In a healthy individual, the *sinoatrial* node typically fires at a rate of 60 to 100 beats per minute, which is considered normal resting heart rate. However, several factors can influence the firing rate of the *sinoatrial* node. For instance, physical activity, emotional stress, and hormonal changes can all lead to an increase in heart rate, while factors such as sleep or certain medications can cause a decrease.When the *sinoatrial* node does not function properly, it can lead to various heart rhythm disorders known as arrhythmias. These conditions can manifest as a heart that beats too fast (tachycardia), too slow (bradycardia), or irregularly. For example, if the *sinoatrial* node fails to generate impulses effectively, it may result in bradycardia, where the heart rate drops below the normal range. Conversely, if the *sinoatrial* node becomes overly active, it can lead to tachycardia, where the heart races uncontrollably.Moreover, the health of the *sinoatrial* node can be affected by various medical conditions, such as coronary artery disease, hypertension, and aging. As people age, the electrical conduction system of the heart may undergo changes, leading to an increased risk of arrhythmias. Therefore, understanding the role of the *sinoatrial* node is vital for both patients and healthcare providers when diagnosing and managing heart-related issues.In conclusion, the *sinoatrial* node is a crucial component of the heart's electrical system, serving as the primary pacemaker that regulates heartbeats. By generating electrical impulses, it ensures that the heart functions efficiently and effectively. Awareness of the *sinoatrial* node's role can help individuals understand their cardiovascular health better and recognize the signs of potential heart rhythm disorders. As research continues to advance our knowledge of cardiac physiology, the importance of the *sinoatrial* node will undoubtedly remain a focal point in the study of heart health and disease management.

人类心脏是一个非凡的器官，在维持全身血液循环方面发挥着至关重要的作用。心脏电传导系统的关键组成部分之一是*sinoatrial* 节，通常称为SA节点。这个小细胞簇位于右心房，负责启动心跳。理解*sinoatrial* 节的功能对于掌握心脏的运作以及各种病症如何影响其性能至关重要。*sinoatrial* 节充当心脏的天然起搏器。它产生的电冲动通过心房传播，导致心房收缩并将血液推送到心室。这一过程对维持高效和协调的心跳至关重要。当*sinoatrial* 节发放信号时，会引发一系列反应，最终导致心室的收缩，确保血液有效地泵送到肺部和全身。在健康个体中，*sinoatrial* 节通常以每分钟60到100次的速度发放，这被视为正常的静息心率。然而，多个因素可以影响*sinoatrial* 节的发放频率。例如，体育活动、情绪压力和激素变化都可能导致心率增加，而睡眠或某些药物则可能导致心率降低。当*sinoatrial* 节无法正常工作时，可能会导致各种心律失常。这些情况可能表现为心跳过快（心动过速）、过慢（心动过缓）或不规则。例如，如果*sinoatrial* 节未能有效产生冲动，可能导致心动过缓，即心率降至正常范围以下。相反，如果*sinoatrial* 节过于活跃，则可能导致心动过速，即心跳失控。此外，*sinoatrial* 节的健康状况可能受到多种疾病的影响，如冠心病、高血压和衰老。随着年龄增长，心脏的电传导系统可能会发生变化，从而增加心律失常的风险。因此，理解*sinoatrial* 节的作用对患者和医疗提供者在诊断和管理心脏相关问题时至关重要。总之，*sinoatrial* 节是心脏电系统的一个重要组成部分，充当调节心跳的主要起搏器。通过产生电冲动，它确保心脏高效有效地运作。意识到*sinoatrial* 节的作用可以帮助个人更好地理解他们的心血管健康，并识别潜在心律失常的迹象。随着研究继续推动我们对心脏生理学的认识，*sinoatrial* 节的重要性无疑将继续成为心脏健康和疾病管理研究的焦点。