An increasing content of elastin is typical of larger arteries that need to provide for considerable elastic recoil during diastole, the time period between ejections of blood from the heart.

• 典型的大动脉必须在血液从心脏流出的舒张期间提供相当大的弹性回缩，所以需要有愈来愈多的弹力蛋白。