A proteinaceous actin-rich layer of the insect ovarian ring canal that forms subcortically to the outer rim. The electron dense inner rim accumulates after the final mitotic division of each germline syncytia, and contains actin, a phosphotyrosine protein, and a number of cytoskeletal proteins.
Comment:
See also the fly_anatomy.ontology term 'inner nurse cell ring canal rim ; FBbt:00004881'.
Synonyms:
narrow_synonym:
nurse cell ring canal inner rim; ovarian ring canal inner rim