inner chorionic layer [FBbt_00000039]
The middle layer that envelops the oocyte and forms part of the eggshell. It surrounds a thin wax layer, which in turn envelops the vitelline membrane. The inner chorionic layer is 40-50nm wide and consists of 8-10 crystalline sublayers that appear as horizontal striations, parallel to the oocyte surface and spaced at approximately 5nm.
inner chorionic layer
ID: FBbt_00000039
Anatomy
The middle layer that envelops the oocyte and forms part of the eggshell. It surrounds a thin wax layer, which in turn envelops the vitelline membrane. The inner chorionic layer is 40-50nm wide and consists of 8-10 crystalline sublayers that appear as horizontal striations, parallel to the oocyte surface and spaced at approximately 5nm.
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