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velamen n.(pl. -lamina )1.【解剖學】帆,膜,被...

velar

Root of backbone nerve around is in backbone ganglion is far side assemble , scabbard of stiff backbone film also closes subsequently for one scabbard , become backbone nerval velamen , namely the film outside nerve , because backbone ganglion is located in between vertebra kong shuiping , the length of backbone nerve root has variation consequently 脊神經前后根在脊神經節遠側會合,硬脊膜鞘也隨之合為一鞘,成為脊神經的被膜,即神經外膜,由于脊神經節位于椎間孔水平,脊神經根的長度因而有變異。

The roots of many orchids and other epiphytes developed a sheath of dead cells , the velamen , which helps to absorb water from the atmosphere 許多蘭科植物的根和一些附生植物的死細胞鞘以及根被都可以幫助植物從空氣中吸收水分。