词根词缀：dorso-, dors-, dorsi-, -dorsal

【来源及含义】Latin: back, on the back, pertaining to the back, near the back

【相关词根词缀】 Word families with similar applications: "back, backside" word units: lumbo- (loin, lower back); nuch- (nape of the neck); pygo- (rump, rear end, back side).

【同源单词】antedorsal, centrodorsal, dorsa, dorsad, dorsal, dorsalis

词根词缀：spin-, spino-, spini-

【来源及含义】Latin: thorn, prickle; by extension, "backbone", the spinal cord

【同源单词】anospinal, anterospinal, cerebrospinal, cervicispinal, costispinal, dorsispinal