Zaki W
Bull Assoc Anat (Nancy). 1977 Jun;61(173):283-90.
The ontogenesis of arachnoid granulations has been analysed in specimens derived from 30 humans, 5 cats and 10 ships. We distinguish the following developmental stages : (i) The arachnoid membrane forms small diverticula that grow toward the superior sagittal sinus. In the majority of cases, this process is followed by an infiltration of mesothelial and connective tissue cells from these diverticula into the dura mater, where it forms the wall of the sinus. (ii) These arachnoid cells form an evagination, giving rise to an arachnoid granulation of simple pediculated form, which, by generating evaginations of second and third order, can become an arachnoid granulation of the so-called complex pediculated form. The wall of the superior sagittal sinus participates in the development of the granulation by the formation of a fibrous capsule. This capsule has openings where arachnoid mesothelium and sinus endothelium are in direct contact.
已对来自30例人类、5只猫和10只绵羊的标本中的蛛网膜颗粒的个体发生进行了分析。我们区分出以下发育阶段：（i）蛛网膜形成小的憩室，其朝着上矢状窦生长。在大多数情况下，此过程之后是来自这些憩室的间皮细胞和结缔组织细胞浸润到硬脑膜中，在那里形成窦壁。（ii）这些蛛网膜细胞形成一个外翻，产生一个简单带蒂形式的蛛网膜颗粒，通过产生二级和三级外翻，其可变成所谓的复杂带蒂形式的蛛网膜颗粒。上矢状窦壁通过形成纤维囊参与颗粒的发育。该囊有开口，蛛网膜间皮和窦内皮在开口处直接接触。
