persistent foramen ovale

例句：

1. 1. The persistent foramen ovale in the heart can be a source of concern for patients with certain heart conditions.
   心脏中持久的卵圆孔可能对某些心脏病患者构成担忧。
2. 2. During surgery, the surgeon carefully dissected around the persistent foramen ovale to avoid damaging the surrounding tissue.
   手术期间，外科医生小心地解剖了围绕持久的卵圆孔周围的组织以避免损伤周围组织。
3. 3. Researchers have been studying the function and anatomy of the persistent foramen ovale as it plays a crucial role in the circulation of blood.
   研究人员一直在研究持久的卵圆孔的功能和解剖学，因为它在血液循环中起着至关重要的作用。