The anterior sacral veins consist of the venous plexus of presacral region and conus veins of sacral vertebrae.

• 骶前区静脉由骶前静脉丛和骶椎椎体静脉组成,有广泛的侧支循环,骶骨C区骨折及严重的B区骨折易损伤骶前静脉丛。