结果： （1）高压氧暴露后，细动脉收缩。
Results:(1) The pial microarteries contracted after exposure to HBO.
局部冠状动脉收缩期狭窄是心肌桥的主要征象；
Systolic stenosis is the characteristic sign of myocardial bridge on CAG.
用药后患者动脉收缩压，舒张压及心率无显著变化。
The systolic pressure, diastolic pressure and heart rate showed no significant changes.
慢性肺心病组mpi与年龄、肺动脉收缩压呈正相关。
MPI also correlated positively with the pulmonary artery systolic pressure.
格里菲斯教授警告说：“氧化应激也会因摧毁一氧化氮而导致动脉收缩。”
"Oxidative stress can also cause arteries to constrict by destroying nitric oxide," Prof Griffith warned.
房间隔缺损患者心肌工作指数与房间隔缺损直径、肺动脉收缩压呈正相关；
MPI appears to be relatively dependent on changes in the diameter of ASD and pulmonary artery systolic pressure.
随访项目包括心功能状态、血气分析和通过超声心动图测量肺动脉收缩压。
The parameters included survival rate, cardiac function, arterial gas analysis and systolic pulmonary artery pressure (SPAP) calculated by echocardiogram.
缺氧时肺动脉压显著升高，这可能是肺毛细血管前肌性小动脉收缩的结果。
Hypoxia produced a sustained increase in pulmonary arterial pressure (Ppa), the site of vasoconstriction was proximal to the lung capillaries.
目的研究鱼精蛋白对离体人肺动脉收缩功能的影响并探讨其可能的发生机制。
Objective To observe the effects and mechanism of protamine on contractility of isolated human pulmonary artery rings.
在修正了动脉收缩压、平均压和舒张压三者之间关系后，可得到与水银血压计比较接近的测量值。
Correcting the relation of systolic, mean and diastolic blood pressure, we can obtain the measure results approximating that of mercury blood meter.
方法利用经颅多普勒检测94例高血压病的颈内动脉和基底动脉收缩峰血流的改变及频普的形态。
Methods Peak systolic blood flow changes of carotid artery and basilar artery in the patterns and frequency were observed by Transcranial Doppler in 94 cases of hypertension.
结果表明观察组脑底动脉收缩期峰值血流速度明显高于正常对照组，差异非常显著（P＜0．01）；
The result showed that systolic peak velocity of bottom cerebral arteries in heroin addicts was much higher than that of the normal control group (P<0.01).
结果：患眼的视网膜中央动脉收缩期峰值血流速度、平均血流速度均低于对侧眼（P＜0．0001）。
Results:The peak systolic velocity and the time average velocity of the central retinal artery of the affected eyes were lower than those of the patients healthy eyes(P<0 0001).
结果表明，拦蛇箭混合生物碱具有降低左心室内压，动脉收缩压和舒张压，以及缩小急性心肌缺血范围的作用。
The results demonstrated that Lanshejian alkaloids may decrease left ventricular pressure, systolic and diastolic blood pressure and reduce the area of acute myocardial ischemia.
目的与有创的导管法对照，评价多普勒超声心动图法测定肺动脉高压患者肺动脉收缩压的可靠性和存在的问题。
AIM to evaluate the reliability of Doppler echocardiography in assessing pulmonary systolic pressure and analyze the problems compared with the right heart catheterization.
目的观察和比较头高位（HUT）与站立位（STD）对模拟失重所致股动脉收缩反应性降低的影响及其时间依赖性。
AIM To examine and compare influence and time dependence of head up tilt (HUT) or standing (STD) on decline of contraction responses of rat femoral artery caused by simulated weightlessness.
目的评价肝素对改善妊娠中晚期脐动脉收缩期最大血流速度（S）与舒张末期血流速度（D）的比值异常的临床效果。
ObjectiveTo evaluate the efficiency of heparin on the ratio of peak systolic to least diastolic flow velocity (S/D) of umbilical artery flow velocity waveforms at second-trimester pregnancies.
目的探讨脐动脉收缩期血流峰值（S）与舒张末期血流速度（D）的比值（S/D）对预测胎儿宫内缺氧的临床价值。
Objective This paper is to investigate the ratio of the systolic peak value and the end-diastolic velocity of blood flow (S/D value) and its clinical value, which can predict fetal anoxia.
通过对椎动脉收缩期切迹组与无切迹组做束臂试验，比较束臂前后收缩期血流速度下降幅度及流速自下降至恢复的时间。
Compare the decline in blood flow velocities and its recovery time before and after Trousseau's test in vertebral waveform with or without notch at systole.
正常对照组颈动脉收缩期径向最大运动速度高于冠心病颈动脉无斑块部位的测值，差异有统计学意义（P＜0.05）；
The systolic maximum velocity of carotid with normal contract was higher significantly than that of carotid without plaque with CAD(P<0.05).
在实验室里，当海豹潜入到水面以下并停止呼吸时，它的心脏跳动得更慢，需要的氧气更少，动脉也会收缩。
In the laboratory, when the seal dives below the surface of the water and stops breathing, its heart beats more slowly, requiring less oxygen, and its arteries become constricted.
A组采用改良的右心导管测定法测定肺动脉平均压、右心室收缩压、右心室舒张压。
The MPAP, RVSP, RVDP were determined by modified rig ht heart catheterization in group A.
他认为理由如下：当人做锻炼时，心肌频繁而有力地收缩，增加了通过动脉的血液流量。
The reason, he says: when a person exercises, the heart muscle contracts forcefully and frequently, increasing blood flow through the arteries.
银杏也有助于控制胆固醇向血小板的转换，并可舒缓收缩的血管。血小板与动脉的硬化有关。
Ginkgo may also help control the transformation of cholesterol to plaque associated with the hardening of arteries, and can relax constricted blood vessels.
动脉越灵活，就能够在填充血液和推动血液流动的时候更好的扩张和收缩。
The more flexible an artery, the better able it is to expand as it fills with blood and contract as it pushes blood farther down the line.
如果雌激素过少，动脉就会收缩，供氧衰竭不足。
If there is too little, this artery Narrows and oxygen supplies are depleted.
如果阻塞了全球信贷大动脉的恐慌不能迅速被平息，发达国家经济面临的风险将会增加，其产出不会只是收缩，而是崩溃。
If the panic that has choked the arteries of credit across the globe is not calmed soon, the danger will increase that output in rich economies will not simply shrink, but collapse.
相比之下，人的心脏只有四个心室，其中的两个心室收缩将血液压进动脉输送到肺部，在那里吸收氧气，放出二氧化碳，而另两个心室则将完成气体交换后的血液输送到到全身。
A human heart, by contrast, has four chambers. Two of these pump blood to the lungs, where it picks up oxygen, then the other two pump this oxygenated blood throughout the body.
主要的征象是热、红、肿、痛。其过程始于组织受损的邻近小动脉的收缩。
Its major signs are heat, redness, swelling, and pain. The process begins with brief contraction of nearby arterioles.
主要的征象是热、红、肿、痛。其过程始于组织受损的邻近小动脉的收缩。
Its major signs are heat, redness, swelling, and pain. The process begins with brief contraction of nearby arterioles.
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