endochorion [FBbt_00000040]

One of the outer layers that envelops the oocyte and forms part of the eggshell. It surrounds the inner chorionic layer and is in turn enveloped by the exochorion. The endochorion is composed of a thin floor (or inner endochorion), and a continuous domed roof (or outer endochorion). The floor and roof are connected by vertical pillars. The outer surface of the roof shows protrusions organized in a regular roof network.

endochorion

ID: FBbt_00000040

Anatomy

One of the outer layers that envelops the oocyte and forms part of the eggshell. It surrounds the inner chorionic layer and is in turn enveloped by the exochorion. The endochorion is composed of a thin floor (or inner endochorion), and a continuous domed roof (or outer endochorion). The floor and roof are connected by vertical pillars. The outer surface of the roof shows protrusions organized in a regular roof network.

Open in VFB 3D Browser →
## Classification

Alternative Names

Synonym Scope Reference
outer endochorion narrow synonym Margaritis et al., 1976
inner endochorion narrow synonym Margaritis et al., 1976