Some of our largest artery walls are made of this stretchy elastic tissue, too, which provides both support and flexibility.

我们一些最大的动脉壁也是由这种有弹性的弹性组织制成的，它提供了支撑和灵活性。

The researchers found that the large arteries in the body became stiffer and less elastic with age, causing increased blood pressure.

研究者们发现人体内的大动脉血管随着年龄增长而逐渐僵硬缺少弹性，从而导致血压上升。

It is the largest artery and carries blood from the heart to the body.

它是最大的动脉，将血液从心脏输送到身体。

This is the largest artery and carries blood from the heart to the body.

这是将血液从心脏输送到身体的最大动脉。

The largest artery, the aorta, is about 1 inch in diameter and has the thickest wall.

动脉的最小分支称为微动脉，其管壁相对较薄，含极少结缔组织但相对较多肌组织。

These chemoreceptors are located in our brains and some large arteries that deliver blood to the brain.

这些化学感受器位于我们的大脑和一些向大脑输送血液的大动脉中。

This smaller size provides greater resistance to blood flow than the larger arteries, just like a smaller hose nozzle does.

与较小的软管喷嘴一样，这种较小的尺寸比较大的动脉具有更大的血流阻力。

Most neural responses like this use baroreceptors, special nerve endings found in the carotid arteries, the aorta, and other larger arteries in the neck.

大多数像这样的神经反应使用压力感受器，在颈动脉、主动脉和颈部的其他大动脉中发现的特殊神经末梢。

Running down the centre of each corpus cavernosum is a large artery called the deep artery which gives off smaller arteries that supply the cavernosal spaces.

在每个海绵体的中心都有一条大动脉，称为深动脉，由它发出较小的动脉，为海绵体间隙供血。

Finally, blood in the left ventricle gets pumped out through the aortic valve, which normally has three cusps out to the aorta, the largest artery in the body.

最后，左心室的血液通过主动脉瓣（通常有三个尖瓣）进入身体最大的动脉：主动脉。

Normally, during pregnancy, the spiral arteries dilate to 5-10 times their normal size and develop into large uteroplacental arteries capable of delivering large quantities of blood to the developing fetus.

正常妊娠中，子宫螺旋动脉可以扩张至原先直径的5-10倍，并发育成粗大的子宫胎盘动脉，从而向发育中的胎儿输送大量血液。

Shortly after the end of the Second World War he had begun to suffer from an abdominal aortic aneurysm, an enlargement of the abdominal aorta, the largest artery in the abdomen.

第二次世界大战结束后不久，他开始患有腹主动脉瘤，即腹主动脉（腹部最大的动脉）肿大。

At this point, the ventricles are under high pressure, and this high-pressure blood is forced out of the ventricles and into the large arteries leaving the heart through the now-open semilunar valves.

此时，心室处于高压状态，这种高压血液被挤出心室，进入大动脉，通过现在打开的半月瓣离开心脏。

When this right ventricle contracts, it forces the pulmonary semilunar valve to open, allowing a rush of blood into the pulmonary trunk, which is the large artery that leaves the right ventricle.

右心室收缩时，它会迫使肺半月瓣打开，从而使血液涌入肺动脉，后者是离开右心室的大动脉。