emissary veins中文什么意思

导静脉

异静脉

• emissary:    n. 1.使者，密使。 2.间谍。 ...
• vein:    n. 1.【解剖学】静脉；〔口语〕血 ...
• condyloid emissary:    髁导血管

百科释义

The emissary veins are valveless veins which normally drain from the dural venous sinuses into veins that lie outside the skull (external veins). However, because they are valveless, pus can flow into the skull through them as well, making them a possible route for transmission of extracranial infection to get into the skull.