摘要
本文对16例(32只)7～8月胎儿的眼球视网膜中央动脉,进行了显微外科解剖研究;并对2例(4只)同月龄胎儿的眼动脉采取 ABS 血管铸型,用以对照。胎儿视网膜中央动脉按其行程,可分为1.眶内部;2.鞘内部;3.视神经内部;4.巩膜筛板和筛板前部。各部分均可发出分支,营养视神经及视神经鞘。胎儿视网膜中央动脉发育良好,出现率为100%,其眶内部的平均管径为0.42 mm。它还发出睫状后支(9.4%)与 Zinn-Haller 环吻合,从而形成视网膜中央动脉和睫状后动脉之间的又一吻合渠道。
The central retinal arteries were studied in 32 eyes obtained from 16 fetuses.
(7-8 months old)with the stereoscopy for the microsurgical anatomy.4 eyes obtain-
ed from 2 fetuses of the same age were injected by A.B.S.,the casts were used
for the contrast study.
The central retinal artery of the fetus was divided into the intraorbital portion,
the intravaginal portion,the intraneural portion and the portion of the lamina cri-
brosa and the pre-lamina cribrosa of the sclera.All four portions gave off branches
to supply the optic nerve and its sheath.
The central retinal artery of the fetus developed very well,its incidence was
100%,its average caliber was 0.42 mm.
The central retinal artery of the fetus gave off the posterior ciliary branch
(9.4%)which anastomosed with the Zinn-Haller circle.It forms another communi-
cation between the central retinal artery and posterior ciliary branch.
出处
《解剖学报》
CAS
CSCD
北大核心
1989年第3期230-233,共4页
Acta Anatomica Sinica
关键词
眼动脉
视网膜
中央动脉
视神经
Ophthalmic artery
Central retinal artery
Optic nerve
Retina.
