【摘要】 作者对4~10个月胎龄的胎儿髁状突分别用显微解剖、微血管造影及组织学切片进行观察。结果显示：髁状突的血供主要来自关节囊颈部血管网，髓动脉和软骨膜内层血管网、营养支来源于面横动脉、嚼肌动脉、颞深后动脉、翼外肌动脉、颞浅动脉的关节后分支和鼓室前动脉的分支。髁状突血供呈立体交通系统，有明显的胎龄变化，在4个月（顶臀长度为107cm）时髁状突关节软骨中央有一条血管通道，并提出了血管通道形成之假设。更多还原

【Abstract】 Fifty - nine temporomandibular joints of the human fetus obtained at autopsy were used in the study with three techniques. This study demonstrated:The condyle is supplied by the vascular plexus in the condylar neck, the branches of theartery in the medullary cavity and the arterial capillaries in the deep layer of the perichondrium. Vascular Canals (VC) develop within the growing condylar cartilage in the 107mm crown - rump fetus. It is hypothesized that how did the VCform.更多还原