aortic arch

简明释义

织脉弓

英英释义

例句

1.A congenital defect can affect the shape of the aortic arch 主动脉弓 in newborns.

先天性缺陷可能会影响新生儿的主动脉弓形状。

2.The surgeon carefully examined the aortic arch 主动脉弓 during the operation.

外科医生在手术中仔细检查了主动脉弓。

3.An aneurysm can develop in the aortic arch 主动脉弓, requiring immediate medical attention.

在主动脉弓中可能会发生动脉瘤，需要立即医疗关注。

4.The aortic arch 主动脉弓 is a critical area for blood flow to the upper body.

在血液流向上半身时，主动脉弓是一个关键区域。

5.Imaging studies revealed a blockage in the aortic arch 主动脉弓 that needed to be addressed.

影像学研究显示主动脉弓中存在需要处理的堵塞。

作文

The human body is a marvel of engineering, composed of various systems that work together to sustain life. One of the most critical components of the circulatory system is the heart, which pumps blood throughout the body. A vital part of this system is the section known as the aortic arch, which plays a crucial role in distributing oxygen-rich blood from the heart to the rest of the body. Understanding the function and significance of the aortic arch can enhance our appreciation for the intricacies of human anatomy.The aortic arch is a curved portion of the aorta, the largest artery in the human body. It is located just above the heart, connecting the ascending aorta, which carries blood away from the heart, to the descending aorta, which supplies blood to the lower parts of the body. The aortic arch gives rise to several major arteries that supply blood to the head, neck, and arms, including the brachiocephalic trunk, left common carotid artery, and left subclavian artery. This arrangement allows for efficient distribution of blood to vital organs and limbs, ensuring that every part of the body receives the oxygen and nutrients it needs to function properly.One of the fascinating aspects of the aortic arch is its role in maintaining blood pressure and flow. The arch's shape helps to regulate the movement of blood as it is pumped from the heart. When the heart contracts, blood is propelled into the aortic arch, creating pressure that pushes the blood through the arteries. The elasticity of the aortic wall allows it to expand and accommodate the surge of blood, which helps to maintain a steady flow throughout the circulatory system.Moreover, the aortic arch is susceptible to various medical conditions that can impact its function. For instance, a condition known as coarctation of the aorta occurs when there is a narrowing of the aorta, often just after the aortic arch. This can lead to increased blood pressure in the upper body and decreased blood flow to the lower body, requiring surgical intervention to correct. Another condition that affects the aortic arch is aneurysm, where a bulge forms in the wall of the aorta, posing a risk of rupture. Such conditions underscore the importance of regular cardiovascular health check-ups to monitor the integrity of the aortic arch and the overall circulatory system.In conclusion, the aortic arch is not only a critical structure within the circulatory system but also a testament to the complexity and efficiency of human anatomy. Its role in distributing blood to essential areas of the body, regulating blood pressure, and its vulnerability to certain health conditions highlight the need for awareness and understanding of this vital component. As we continue to learn more about the human body, the aortic arch serves as a reminder of the intricate design that sustains our life and health. By appreciating the significance of the aortic arch, we can foster a greater understanding of our bodies and the importance of taking care of our cardiovascular health.

人体是工程的奇迹，由各种系统组成，这些系统共同工作以维持生命。循环系统中一个至关重要的组成部分是心脏，它负责将血液泵送到全身。其中一个重要部分是被称为aortic arch（主动脉弓）的部分，它在将富含氧气的血液从心脏分配到全身中起着关键作用。理解aortic arch的功能和重要性可以增强我们对人体解剖复杂性的欣赏。aortic arch是主动脉的一部分，主动脉是人体内最大的动脉。它位于心脏正上方，连接着向心脏输送血液的升主动脉和向身体下部供应血液的降主动脉。aortic arch发出几条主要动脉，向头部、颈部和手臂供应血液，包括头臂干、左颈动脉和左锁骨下动脉。这种安排允许有效地将血液分配到重要器官和肢体，确保身体的每个部分都能获得所需的氧气和营养，以正常运作。aortic arch的一个迷人之处在于它在维持血压和血流中的作用。弓形的结构有助于调节血液的运动，当血液从心脏泵送时，aortic arch的形状帮助保持血流的稳定。当心脏收缩时，血液被推动进入aortic arch，产生的压力推动血液通过动脉。主动脉壁的弹性使其能够扩张并容纳血液的涌入，从而帮助维持整个循环系统的稳定流动。此外，aortic arch容易受到多种医疗状况的影响，这些状况可能会影响其功能。例如，主动脉缩窄是一种疾病，发生在主动脉狭窄，通常发生在aortic arch之后。这可能导致上半身的高血压和下半身的血流减少，需要外科干预进行修复。另一种影响aortic arch的情况是动脉瘤，其中主动脉的壁形成隆起，存在破裂的风险。这些情况强调了定期进行心血管健康检查的重要性，以监测aortic arch及整体循环系统的完整性。总之，aortic arch不仅是循环系统中的一个关键结构，也是人体解剖复杂性和高效性的证明。它在将血液分配到身体重要区域、调节血压以及对某些健康状况的脆弱性方面的重要性突显了对这一重要组成部分的关注和理解的必要性。随着我们对人体的了解不断加深，aortic arch提醒我们维持生命和健康的复杂设计。通过欣赏aortic arch的重要性，我们可以更好地理解我们的身体以及照顾心血管健康的重要性。