hòu zhèng zhōng xiàn · ㄏㄡˋ ㄓㄥˋ ㄓㄨㄥ ㄒㄧㄢˋ · 更新 2026-06-30 08:32:06
沿身体后面正中即椎骨棘突所作的垂线。 维基百科：The posterior median line is a sagittal line on the posterior torso at the midline. A similar term is "vertebral line", which defined by the spinous processes.