词根词缀：cardio-, cardi-, card-

【来源及含义】Greek: heart, pertaining to the heart

【相关词根词缀】 A cross reference of another word group that is related to: "heart": cor-, cord-.

【同源单词】acardia, acardiac, acardiotrophia, acardius, acleistocardia, acute myocardial infarction

词根词缀：ecto-, ect-

【来源及含义】Greek: outside, external, beyond

【同源单词】ectobiology, ectoblast, ectocardia, ectocytic, ectoderm, ectodermal