词根词缀：encephalo-, encephal-

【来源及含义】Greek: brain; that which is inside the head

【同源单词】amyelencephalia, anencephalia, anencephalic, anencephalology, anencephalous, anencephaly

词根词缀：opistho-, opisth-

【来源及含义】Greek: backward; behind, at the back, after, posterior

【同源单词】opisthaptor, opisthenar, opisthencephalon, opisthiobasial, opisthion, opisthionasial