atrioventricular

atrioventricular的音标为["ætrɪəʊvəntʃɪvrəl]，基本翻译为“房室束的”，速记技巧为“at-tri-ov-vent-cul-or-al”。

atrioventricular这个词的词源是拉丁语，意思是“三心房的”。这个词是由“atri”（三）和“ventriculus”（心室）两个词组合而成。

这个词的变化形式主要有：

1.atrioventricular node（房室结）: 这是心脏中的一个重要结构，是房室束及其周围组织膨大的部位。

2.atrioventricular valve（房室瓣）: 这是心脏中的瓣膜，负责防止血液回流。

相关单词有：

1.atrioventricular septum（房室隔）: 这是分隔左、右心房的间隔组织。

2.atrioventricular defect（房室管畸形）: 这是指心脏的房室瓣或房室隔发育异常。

3.atrioventricular dissociation（房室分离）: 这是指心脏的房室传导系统出现异常，导致房室不能正常协调收缩。

这些单词可以用来描述心脏的各种结构和功能，以及与之相关的疾病和异常情况。这个词在医学和生物学中非常重要，因为它涉及到心脏的正常功能和疾病的发生机制。

短语：

1. atrioventricular node (AV node)

2. atrioventricular valve (AV valve)

3. atrioventricular septum (AV septum)

4. atrioventricular conduction (AV conduction)

5. atrioventricular dyssynchrony

6. atrioventricular dissociation

7. atrioventricular valve disease

例句：

1. The patient had an abnormal AV node, causing delayed heartbeat.

2. The AV valve was damaged in the accident, causing heart failure.

3. The AV septum was found to be thickened in the elderly patient, leading to heart disease.

4. AV conduction was normal in the young athlete, allowing him to participate in competitive sports.

5. The patient complained of atrioventricular dyssynchrony, which was treated with medication.

6. The doctor diagnosed atrioventricular dissociation in the patient, leading to a cardiac arrest.

7. The AV valve disease caused severe heart failure and required surgery.

英文小作文：

My heart is like an intricate machine, with delicate systems of valves and nodes that work together to keep me alive. However, sometimes these systems can malfunction, causing problems like heart failure or arrhythmia. Understanding my heart"s workings has taught me the importance of maintaining a healthy lifestyle and seeking medical attention when necessary. I hope to share my experience with others, encouraging them to take care of their hearts as well.