cephalic vein

例句：

1. 1. The cephalic vein is a vital component of the brain's blood supply.
   头静脉是大脑血液供应的重要组成部分。
2. 2. During surgery, the cephalic vein is often clamped to prevent bleeding.
   在手术过程中，头静脉经常被夹住以防止出血。
3. 3.The cephalic vein carries oxygenated blood back to the heart.
   头静脉将含氧血液输送回心脏。