词根词缀：cente-, -centesis

【来源及含义】Greek: perforation, puncture, or tapping, as with an aspirator or needle

【同源单词】abdominal paracentesis, abdominalcentesis, abdominocentesis, amniocentesis, arthrocentesis, bathycentesis

词根词缀：rachio-, rachi-, rach-, rachis-, rhach-, rhachi-, rhachio-

【来源及含义】Greek > Latin: spine, backbone

【同源单词】rachial, rachialgia, rachianalgesia, rachianesthesia, rachicentesis, rachidial