词根词缀：-al, -ial, -eal

【来源及含义】Latin: suffix; pertaining to, like, of the kind of, relating to, characterized by, belonging to; action of, process of

【同源单词】abacterial, abdominal, abdominal adhesion, abdominal aorta, abdominal aortic aneurysm, abdominal aortography

词根词缀：atrio-, atri-

【来源及含义】Latin: entrance hall or chamber; upper heart chamber; central room

【同源单词】atrial, atrial electrogram, atrial fibrillation, atriomegaly, atrioseptoplasty, atrioseptostomy