Fifth aortic arch

• 第五主动脉弓

Fifth aortic arch的用法和样例：

例句

1. This angiogram demonstrates the aortic arch and great vessels.
   血管造影显示主动脉弓和大动脉。
2. The narrowed segment called coarctation can occur anywhere in the aorta, but is most likely to happen in the segment just after the aortic arch.
   狭窄的部分称为缩窄，可发生在主动脉的任何地方，但是最容易发生在紧接主动脉弓后的部分。