valve flap

简明释义

阀瓣

英英释义

例句

1.Patients with a leaky valve flap often experience shortness of breath.

有漏水的瓣膜的患者通常会感到呼吸急促。

2.During the surgery, the surgeon replaced the damaged valve flap to restore normal blood flow.

在手术过程中，外科医生更换了受损的瓣膜以恢复正常的血流。

3.The echocardiogram showed that the valve flap was not closing properly.

超声心动图显示瓣膜没有正确关闭。

4.The doctor explained that the problem with my heart was due to a malfunctioning valve flap.

医生解释说，我心脏的问题是由于一个故障的瓣膜。

5.An open valve flap can cause blood to flow backward, leading to serious health issues.

打开的瓣膜可能导致血液倒流，从而引发严重的健康问题。

作文

In the world of biology and anatomy, various structures play crucial roles in maintaining the proper functioning of living organisms. One such structure is the valve flap, which is essential for regulating the flow of fluids within the body. The valve flap acts as a gatekeeper, ensuring that blood flows in one direction and preventing backflow, which could lead to serious health issues. Understanding the function and importance of the valve flap can provide valuable insights into how our bodies operate on a fundamental level.The valve flap can be found in several parts of the body, including the heart and veins. In the heart, there are four main valves: the tricuspid valve, pulmonary valve, mitral valve, and aortic valve. Each of these valves contains valve flaps that open and close in response to pressure changes within the heart chambers. For instance, when the heart contracts, the valve flaps open to allow blood to flow out of the heart. When the heart relaxes, these flaps close tightly to prevent blood from flowing backward into the chambers.The significance of the valve flap extends beyond just the heart. In veins, especially those in the limbs, valve flaps help maintain venous return to the heart against the force of gravity. This is particularly important in preventing conditions such as varicose veins, where blood can pool in the lower extremities due to weakened or damaged valve flaps.Moreover, the integrity of the valve flap is vital for overall cardiovascular health. Conditions such as valvular heart disease can arise when the valve flaps become stenotic (narrowed) or insufficient (leaky). Such conditions can lead to symptoms like fatigue, shortness of breath, and even heart failure if left untreated. Therefore, regular check-ups and monitoring of heart health are essential for early detection and management of any potential issues related to the valve flap.In conclusion, the valve flap is a small yet significant component of our circulatory system. Its role in ensuring unidirectional blood flow and preventing backflow is crucial for maintaining the efficiency of the heart and the entire vascular system. By understanding the mechanics and importance of the valve flap, we can appreciate the complexity of our body's systems and the delicate balance required for optimal health. As we continue to learn more about human anatomy, the study of structures like the valve flap will undoubtedly contribute to advancements in medical science and treatment options for cardiovascular diseases.

在生物学和解剖学的世界中，各种结构在维持生物体正常功能中发挥着关键作用。其中一个结构是阀瓣，它对于调节体内液体的流动至关重要。阀瓣充当守门人，确保血液单向流动并防止回流，这可能导致严重的健康问题。理解阀瓣的功能和重要性可以为我们提供关于身体如何在基本层面上运作的宝贵见解。阀瓣可以在身体的多个部位找到，包括心脏和静脉。在心脏中，有四个主要的瓣膜：三尖瓣、肺动脉瓣、二尖瓣和主动脉瓣。这些瓣膜中的每一个都包含阀瓣，根据心腔内压力变化而开合。例如，当心脏收缩时，阀瓣打开，允许血液流出心脏。当心脏放松时，这些瓣膜紧紧关闭，以防止血液倒流回心腔。阀瓣的重要性不仅限于心脏。在静脉，尤其是肢体的静脉中，阀瓣有助于在重力的作用下维持血液返回心脏。这在防止静脉曲张等病症方面尤其重要，静脉曲张是由于阀瓣弱化或损坏而导致血液在下肢滞留。此外，阀瓣的完整性对整体心血管健康至关重要。像瓣膜性心脏病这样的疾病可能会在阀瓣变窄（狭窄）或不足（漏）时出现。这些疾病如果不及时治疗，可能会导致疲劳、呼吸急促，甚至心力衰竭。因此，定期检查和监测心脏健康对于早期发现和管理与阀瓣相关的任何潜在问题至关重要。总之，阀瓣是我们循环系统中一个小但重要的组成部分。它在确保单向血流和防止回流方面的作用对于维持心脏和整个血管系统的效率至关重要。通过理解阀瓣的机制和重要性，我们可以欣赏到我们身体系统的复杂性以及保持最佳健康所需的微妙平衡。随着我们对人体解剖学的进一步了解，像阀瓣这样的结构的研究无疑将促进医学科学和心血管疾病治疗方案的进步。