keyhole structure [FBbt_00001864]

Proventriculus primordium during embryonic stage 15 when it has a keyhole shape due to buckling of the foregut tube.

keyhole structure

ID: FBbt_00001864

Anatomy

Proventriculus primordium during embryonic stage 15 when it has a keyhole shape due to buckling of the foregut tube.

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## Classification