palmar metacarpal arteries

例句：

1. 1.The palmar metacarpal arteries are responsible for delivering blood to the fingers and toes.
   掌骨动脉负责将血液输送到手指和脚趾。
2. 2. The doctor performed an operation on the patient's palmar metacarpal arteries.
   医生对患者的掌骨动脉进行了手术。
3. 3. The patient was given medication to treat the palmar metacarpal arteries.
   患者被给予药物来治疗掌骨动脉。