chorda arteriae umbilicalis

例句：

1. 1.The baby's heart rate is monitoredclosely during the delivery process.
   在分娩过程中，婴儿的心率被密切监测。
2. 2. Thedoctor performed a successful surgery on the patient's umbilical artery.
   医生成功地为病人的脐带动脉进行了手术。
3. 3. Umbilical cord bloodcan be used to study genetic disorders innewborns.
   脐带血可以用于研究新生儿遗传性疾病。