baroreceptor

简明释义

英[ˈbærəʊrɪˌseptə(r)]美[ˌbærərɪˈseptər]

n. [解剖][生理] 压力感受器

英英释义

单词用法

同义词

反义词

例句

1.The declination of baroreceptor reflex function is one of the important factor causing orthostatic intolerance after space flight.

压力感受器反射功能下降是引起飞行后航天员立位耐力下降的重要起因之一。

2."We now have evidence that brain ACE2 plays a critical role in baroreceptor reflex function and, consequently, in the prevention of hypertension," says Dr. Xia.

我们现在有足够的证据证明大脑中ace2在压力感受反射功能中起着重要作用，结果它能预防高血压的发生，夏博士说。

3.The neurotensin immunoreactive (NTIR) in plasma and some brain areas was measured when baroreceptor was excited by depressor nerve stimulation and carotid sinus perfusion.

实验分别采用颈动脉窦灌流及电刺激减压神经的方法，测定在产生减压效应时，家兔部分脑区及血浆内神经降压素含量的改变。

4.Beat-to-beat short term regulation of blood pressure is provided by a spontaneous reflex called the baroreceptor reflex.

心跳间歇期的血压调节提供了一个自发反射，称为压力感受性反射。

5.First, the researchers demonstrated that chronically hypertensive mice showed dramatically decreased baroreceptor reflex sensitivity and ACE2 activity.

首先，研究人员指出患有慢性高血压的老鼠所表现的压力感受反射敏感性和ACE2活动的显著降低。

6.The changes of baroreceptor reflex, especially the disturbance of CNS regulation function are the main factors causing the decrease of orthostatic tolerance after bed rest.

而压力感受性反射功能的改变，特别是中枢神经系统调节功能的紊乱，是卧床后立位耐力降低的主要原因。

7.The changes of baroreceptor reflex, especially the disturbance of CNS regulation function are the main factors causing the decrease of orthostatic tolerance after bed rest.

而压力感受性反射功能的改变，特别是中枢神经系统调节功能的紊乱，是卧床后立位耐力降低的主要原因。

8.Pulmonary vascular is an effector of baroreceptor reflex, which can exert significant control of pulmonary resistance and capacitance after orthostatic challenge.

肺血管是压力反射效应器的一部分，立位应激时的压力反射很大程度上控制着肺循环的阻力和容量。

9.Current data showed that lowering of orthostatic tolerance after prolonged weightlessness is most likely due to change of baroreceptor reflex function.

许多数据表明长期失重以后立位耐力降低可能与压力感受性反射功能的改变有关。

10.The baroreceptor 压力感受器 reflex is crucial for maintaining cardiovascular stability.

压力感受器反射对于维持心血管稳定至关重要。

11.When blood pressure drops, the baroreceptor 压力感受器 sends signals to the brain to stimulate heart rate.

当血压下降时，压力感受器向大脑发送信号以刺激心率。

12.Research shows that aging can impair the function of baroreceptor 压力感受器 responses.

研究表明，衰老可能会损害压力感受器反应的功能。

13.The activation of the baroreceptor 压力感受器 helps regulate blood pressure during physical activity.

在身体活动期间，压力感受器的激活有助于调节血压。

14.Patients with hypertension may have altered baroreceptor 压力感受器 sensitivity.

高血压患者的压力感受器敏感性可能发生改变。

作文

The human body is a complex system that relies on various mechanisms to maintain homeostasis. One of the key components in this regulatory system is the baroreceptor, which plays a crucial role in monitoring blood pressure. These specialized sensory nerve endings are located primarily in the carotid arteries and the aorta, where they can detect changes in the stretch of the arterial walls. When blood pressure rises, the walls of these arteries stretch, activating the baroreceptor cells. Conversely, when blood pressure falls, the stretching decreases, leading to reduced activation of these receptors.The primary function of the baroreceptor is to send signals to the central nervous system about the status of blood pressure. This information is vital for the body’s ability to respond appropriately to fluctuations in blood pressure, ensuring that organs receive adequate blood flow. For instance, if a person stands up quickly, gravity causes blood to pool in the lower extremities, leading to a temporary drop in blood pressure. The baroreceptor detects this change and sends signals to the brain, which then triggers mechanisms to increase heart rate and constrict blood vessels, thereby restoring blood pressure to normal levels.In addition to their role in acute blood pressure regulation, baroreceptors also contribute to long-term blood pressure control. They help the body adapt to chronic changes in blood pressure by adjusting the sensitivity of the receptors themselves. For example, in cases of hypertension, the baroreceptors may recalibrate to a higher set point, allowing the body to function normally despite elevated blood pressure levels. However, this adaptation can sometimes lead to complications, as the body may become less responsive to significant changes in blood pressure, increasing the risk of cardiovascular events.Research has shown that dysfunction of the baroreceptor system can be linked to various health issues, including hypertension and heart failure. Patients with impaired baroreceptor sensitivity may experience difficulties in regulating their blood pressure, leading to persistent high blood pressure or episodes of hypotension. This highlights the importance of maintaining healthy baroreceptor function for overall cardiovascular health.Moreover, understanding the mechanisms behind baroreceptors has implications for medical treatments. For instance, therapies aimed at enhancing baroreceptor sensitivity could be beneficial for patients suffering from hypertension. Additionally, devices such as baroreflex activation therapy are being explored as potential treatments for resistant hypertension, showcasing the clinical relevance of this physiological phenomenon.In conclusion, baroreceptors are essential components of the cardiovascular system that play a pivotal role in maintaining blood pressure homeostasis. Their ability to detect changes in arterial pressure and communicate this information to the central nervous system is fundamental for both immediate and long-term blood pressure regulation. As research continues to uncover the complexities of baroreceptor function, it becomes increasingly clear that these receptors are not only vital for our understanding of physiology but also hold promise for innovative therapeutic approaches to manage cardiovascular diseases.

人体是一个复杂的系统，依赖于各种机制来维持体内平衡。其中一个关键组成部分就是压力感受器，它在监测血压方面发挥着至关重要的作用。这些特殊的感觉神经末梢主要位于颈动脉和主动脉中，能够检测动脉壁的拉伸变化。当血压升高时，这些动脉的壁会拉伸，从而激活压力感受器细胞。相反，当血压下降时，拉伸减小，导致这些感受器的激活减少。压力感受器的主要功能是向中枢神经系统发送有关血压状态的信号。这些信息对于身体能够适当地响应血压波动至关重要，确保器官获得足够的血流。例如，如果一个人突然站起来，重力会使血液聚集在下肢，导致血压暂时下降。压力感受器检测到这种变化，并向大脑发送信号，随后触发机制以增加心率和收缩血管，从而恢复正常的血压水平。除了在急性血压调节中的作用外，压力感受器还对长期血压控制起到重要作用。它们通过调整感受器本身的敏感性，帮助身体适应慢性血压变化。例如，在高血压情况下，压力感受器可能会重新校准到更高的设定点，使身体在血压升高的情况下仍能正常运作。然而，这种适应有时会导致并发症，因为身体可能对显著的血压变化反应减弱，从而增加心血管事件的风险。研究表明，压力感受器系统的功能障碍与多种健康问题有关，包括高血压和心力衰竭。具有受损的压力感受器敏感性的患者可能在调节血压方面遇到困难，导致持续的高血压或低血压发作。这突显了维持健康压力感受器功能对整体心血管健康的重要性。此外，理解压力感受器背后的机制对医学治疗具有重要意义。例如，旨在增强压力感受器敏感性的治疗可能对患有高血压的患者有益。此外，像压力反射激活疗法这样的设备正在被探索作为抵抗性高血压的潜在治疗方案，这展示了这一生理现象的临床相关性。总之，压力感受器是心血管系统的重要组成部分，在维持血压稳态方面发挥着关键作用。它们检测动脉压力变化并将此信息传递给中枢神经系统的能力，对于血压的即时和长期调节至关重要。随着研究不断揭示压力感受器功能的复杂性，越来越清楚的是，这些感受器不仅对我们理解生理学至关重要，而且对管理心血管疾病的创新治疗方法也充满希望。