When the elastic fibers around the aorta weaken, they can't provide the artery with enough support.

当大动脉周围的弹性纤维变弱时，它们就不能为动脉提供足够的支撑。

In addition, you've also got elastic fibers — which are longer and thinner, and form a branching framework within the matrix.

此外，你还得到了弹性纤维——这些纤维更长更薄，在基质中形成了一个分枝框架。

Most often, it targets the elastic fibers, causing weakness in the matrix that's the root of many of the condition's most serious symptoms.

大多数情况下，它的目标是弹性纤维，导致基质虚弱，这是许多最严重症状的根源。

Because blood is propelled out of your heart under high pressure, the aorta contains elastic fibers that allow it to expand and relax.

因为血液是在高压下从心脏排出的，主动脉中含有弹性纤维，可以使它扩展和松弛。

The aorta also contains many elastic fibers that allow it to expand when blood first enters and then relax as the blood moves along.

主动脉中还含有许多弹性纤维，当血液第一次进入主动脉时，这些纤维可以使主动脉扩张，然后随着血液的流动而松弛。

As we mentioned earlier, the walls of the aorta contain elastic fibers that allow it to stretch and relax along with the movement of blood through the vessel.

如前所述，主动脉壁含有弹性纤维，使其随着血管中血液的流动而伸展和松弛。