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单词 Nerve fiber layer
释义

Nerve fiber layer

中文百科

神经纤维层

视网膜纵切面,从内向外依次排列。
视网膜神经元示意图

视网膜神经纤维层(英文:Retinal nerve fiber layer, RNFL)由视神经纤维延伸而成,在视孔附近最厚,向锯齿缘方向渐渐变薄。

视神经纤维穿过筛板后失去髓鞘,继续穿过脉络膜、视网膜,变成单纯的轴索。

神经纤维到达视网膜内表面后,从入口处发散,集结成束状分布整个表面,并在多处形成丛状结构。

大多数纤维为向心分布,是神经节细胞层的细胞的轴索直接延续,但也有少部分是离心

分布,并在内丛状层和内核层交错分叉,末端增大。

英语百科

Nerve fiber layer 神经纤维层

1:posterior segment 2:ora serrata 3:ciliary muscle 4:ciliary zonules 5:Schlemm's canal 6:pupil 7:anterior chamber 8:cornea 9:iris 10:lens cortex 11:lens nucleus 12:ciliary process 13:conjunctiva 14:inferior oblique muscule 15:inferior rectus muscule 16:medial rectus muscle 17:retinal arteries and veins 18:optic disc 19:dura mater 20:central retinal artery 21:central retinal vein 22:optic nerve 23:vorticose vein 24:bulbar sheath 25:macula 26:fovea  27:sclera 28:choroid 29:superior rectus muscle 30:retina

The retinal nerve fiber layer (nerve fiber layer, stratum opticum, RNFL) is formed by the expansion of the fibers of the optic nerve; it is thickest near the porus opticus, gradually diminishing toward the ora serrata.

As the nerve fibers pass through the lamina cribrosa sclerae they lose their medullary sheaths and are continued onward through the choroid and retina as simple axis-cylinders.

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更新时间:2025/6/20 5:18:19