radial veins

例句：

1. 1. The radial veins in the palm of your hand are responsible for carrying blood back to the heart.
   手掌的辐射状静脉负责将血液输送回心脏。
2. 2. During exercise, the radial veins in your arms become more prominent due to increased blood flow.
   运动时，手臂上的辐射状静脉因血流增加而变得更加明显。
3. 3.A doctor can use ultrasound to visualize the radial veins and identify any blockages or swellings.
   医生可以使用超声波来可视化辐射状静脉并识别任何阻塞或肿胀。