part of part of located in located in in taxon develops from develops from has potential to develop into has potential to develop into Eumetazoa ectoderm proctodeum https://github.com/obophenotype/uberon/issues/685 proctodeal amnioproctodeal invagination removed WBbt:0006795 'proctodeum' - junction between the alimentary and genital tracts in the male. proctodaeum anus porus Wikipedia:Proctodeum UMLS:C0231054 An inward fold on the surface of the embryonic ectoderm that develops into part of the anal passage.[TAO] Inward fold on the surface of the embryonic ectoderm that develops into an ectodermal terminal part of the digestive tract. TAO:0000066 NCIT:C34278 anal pit AAO:0011087 ZFA:0000066 XAO:0001019 UBERON:0000931 embryonic proctodaeum EMAPA:25038 FBbt:00000123 EHDAA2:0000121 VHOG:0000139 Inward fold on the surface of the embryonic ectoderm that develops into part of the anal passage.[AAO] anal region presumptive gut external anal region pit Christopher J. Mungall David Osumi-Sutherland