vena

简明释义

英[ˈviːnə]美['vinə]

n. 脉；[解剖]静脉

n. （Vena）人名；（罗、塞、意）韦娜（女名），韦纳

复 数 v e n a e

英英释义

单词用法

同义词

反义词

例句

1.Objective to study the rule of respiratory changes of flow parameters of superior vena cava when right atrium pressure increased.

目的探讨右心房压力升高时上腔静脉血流参数随呼吸运动变化的规律。

2.The association of horseshoe kidney with left inferior vena cava is rare.

马蹄型肾合并左下腔静脉是相当罕见的病例。

3.Objective: To explore the treatment of Superior Vena Caval Syndrome caused by tumor.

目的：对肿瘤所致上腔静脉综合征的治疗进行探讨。

4.Objective: to explore nursing measures of superior vena cava syndrome (SVCS) due to lung cancer treated by endovascular stent implantation.

前言：目的：探讨血管内支架置入治疗肺癌伴上腔静脉阻塞综合征的护理措施。

5.The objective is to explore the roles of color Doppler vena contracta in the evaluation of mitral regurgitation grading.

目的是探讨彩色多普勒静脉收缩术在评估二尖瓣反流分级中的作用。

6.Method : We accept indwelling needle at vena saphena magna near medial malleolus and cephanus vena at wrist.

方法：选择下肢内踝大隐静脉和上肢腕部头静脉，使用静脉留置针。

7.The nurse inserted the IV into the patient's vena 静脉 for medication administration.

护士将静脉注射器插入病人的vena静脉以进行药物给药。

8.The doctor examined the patient's vena 静脉 to check for any abnormalities.

医生检查了病人的vena静脉以寻找任何异常。

9.A blood clot in the vena 静脉 can lead to serious health issues.

在vena静脉中形成血栓可能导致严重的健康问题。

10.The vena 静脉 carries deoxygenated blood back to the heart.

vena静脉将缺氧血液输送回心脏。

11.During the surgery, the surgeon carefully avoided cutting the vena 静脉 to prevent excessive bleeding.

手术期间，外科医生小心翼翼地避免切割vena静脉以防止过度出血。

作文

The human body is a complex and fascinating system, composed of various organs, tissues, and cells that work together to maintain life. One of the critical components of this system is the network of blood vessels that transport blood throughout the body. Among these vessels, the term vena refers to veins, which are responsible for carrying deoxygenated blood back to the heart. Understanding the role of the vena in our circulatory system is essential for appreciating how our body functions. Veins have a unique structure that enables them to perform their function effectively. Unlike arteries, which carry oxygen-rich blood away from the heart, vena are equipped with valves that prevent the backflow of blood. This is particularly important because the pressure in veins is significantly lower than in arteries, making it crucial for blood to flow in one direction towards the heart. The presence of these valves ensures that even when we are standing or sitting for long periods, blood can still return to the heart efficiently. In addition to their structural features, vena also play a vital role in regulating blood flow and maintaining overall cardiovascular health. For instance, during physical activity, the muscles contract and compress nearby veins, assisting in pushing blood back to the heart. This process is known as the muscle pump mechanism, and it highlights the importance of movement in promoting healthy circulation. Without the proper functioning of our vena, our bodies would struggle to maintain adequate blood flow, leading to various health issues such as varicose veins or deep vein thrombosis.Moreover, the study of vena extends beyond just their physiological functions. In medical science, understanding the conditions affecting veins is crucial for diagnosing and treating a range of disorders. For example, chronic venous insufficiency occurs when the vena cannot effectively return blood to the heart, resulting in swelling and discomfort in the legs. Treatments for such conditions often involve lifestyle changes, medications, or surgical interventions aimed at improving venous function.In conclusion, the vena are more than just simple blood vessels; they are essential components of our circulatory system that play a significant role in maintaining our health. By ensuring that deoxygenated blood returns to the heart, vena help sustain the body's overall function and support vital processes. Understanding the importance of these vessels allows us to appreciate the intricate workings of our bodies and the need for proper care to maintain cardiovascular health. As we continue to learn more about the human body, the significance of the vena will undoubtedly remain a focal point in both education and medical practice.

人类身体是一个复杂而迷人的系统，由各种器官、组织和细胞组成，这些成分共同工作以维持生命。在这个系统中，血管网络是一个关键组成部分，它负责在全身运输血液。在这些血管中，术语vena指的是静脉，它们负责将缺氧的血液输送回心脏。理解vena在我们循环系统中的作用对于欣赏我们身体的功能至关重要。静脉具有独特的结构，使其能够有效地执行其功能。与将富氧血液从心脏输送出去的动脉不同，vena配备了防止血液回流的瓣膜。这一点尤为重要，因为静脉中的压力明显低于动脉，因此血液必须朝着一个方向流向心脏。瓣膜的存在确保即使我们长时间站立或坐着，血液仍然能够有效地返回心脏。除了结构特征外，vena还在调节血流和维持整体心血管健康方面发挥着重要作用。例如，在体育活动期间，肌肉收缩并压迫附近的静脉，帮助将血液推回心脏。这个过程被称为肌肉泵机制，突显了运动在促进健康循环中的重要性。如果我们的vena不能正常运作，我们的身体将难以维持足够的血流，导致各种健康问题，例如静脉曲张或深静脉血栓。此外，vena的研究不仅限于其生理功能。在医学科学中，了解影响静脉的病症对于诊断和治疗一系列疾病至关重要。例如，慢性静脉功能不全发生在vena无法有效将血液返回心脏时，导致腿部肿胀和不适。此类疾病的治疗通常涉及生活方式的改变、药物治疗或旨在改善静脉功能的外科干预。总之，vena不仅仅是简单的血管；它们是我们循环系统的重要组成部分，在维持健康方面发挥着重要作用。通过确保缺氧血液返回心脏，vena帮助维持身体的整体功能并支持重要过程。理解这些血管的重要性使我们能够欣赏身体的复杂运作以及保持心血管健康所需的适当护理。随着我们对人体的了解不断加深，vena的重要性无疑将继续成为教育和医学实践的重点。