[Morphology of Schlemm's canal and related vessels in the human eye].
[Morphology of Schlemm's canal and related vessels in the human eye].
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DOI：
10.1007/bf00421587
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发表时间：
1968-01-01
期刊：
影响因子：
--
通讯作者：
Rentsch, F J
中科院分区：
文献类型：
--
作者：
Rohen, J W;Rentsch, F J
在人体解剖眼的准备工作中，施莱姆管注射了塑料样液或印度墨水-明胶溶液，对施莱姆管的形态和流出通道进行了新的研究。此外，还对序列切片进行了分析。注射标本矢状径平均为370 μ。神经丛样形态相对少见。将流出渠道分为直接流出渠道和间接流出渠道两种。直接流出通道在Schlemm管的起始点显示出更宽的流明（平均70 μ）。它们数量不多，平均每只眼睛只有4-6个。它们呈拱形或螺旋状运行，与巩膜内神经丛不太吻合，但或多或少只与巩膜外神经网络相连。间接流出通道较小（约50 μ），数量较多（每个眼球15-20个）。起源于椎管，它们迅速进入筋膜内毛细血管网。有几种中间类型的流出通道（4-6）。施勒姆氏管的外通道之间的距离平均为1.2毫米。我们认为间接通道和直接通道对水的流出也有不同的作用。在流出通道的起点处，施勒姆管外壁呈环形唇状增厚，有时有与内壁相连的短斜隔。它们可能会保持腔体打开，并引导含水液体进入外部通道。睫状神经丛和束内神经丛之间有毛细血管吻合，这一事实在文献中并不总是得到证实。
In preparations of human autopsy eyes in which Schlemm's canal was injected with plastoid or India ink-gelatine solution, the morphology of the canal and its outflow channels were newly investigated. In addition, serial sections were analyzed. In injection specimens the sagittal diameter of the canal measured on the average 370 μ. The plexus-like form was seen relatively rarely.Two types of outflow channels were distinguished: direct and indirect channels. Thedirect outflow channelsshow wider lumina at the point of origin in Schlemm's canal (70 μ on the average). They are not numerous, averaging only 4–6 in each eye. Running in an arch-like or spiral course, they do not anastomose very much with the intrascleral plexus but are connected more or less exclusively to the episcleral network. Theindirect outflow channelsare smaller (about 50 μ) and more numerous (15–20 in each eye ball). Originating at the canal they enter rapidly into the intrascleral capillary network. There are a few intermediate types of outflow channels (4–6).The distances between the outer channels of Schlemm's canal are 1.2 mm on the average. We believe that the indirect and direct channels also have different functions for the aqueous outflow.At the point of origin of the outflow channels the outer wall of Schlemm's canal shows torusor lip-like thickenings and sometimes short oblique septa, which are connected with the inner wall. They presumably keep the lumina open and direct the aqueous fluid into the outer channels.There are capillary anastomoses between the ciliary and intrascleral plexus, a fact which has not always been confirmed in the literature.