sinus rectus

1. For those who had medial rectus muscle impacted into the ethmoid sinus or inferior rectus muscle impacted into the maxillary sinus, the bone was repaired with hydroxyapatite bone plates.
   内直肌嵌入筛窦，下直肌嵌入上颌窦，在眶内容还纳复位后分别用天然珊瑚人造骨板修复骨孔。

noun

1. an unpaired sinus of the dura mater

   Synonym:    straight sinustentorial sinus