An extra-embryonic membranous sac derived from the YOLK SAC of REPTILES; BIRDS; and MAMMALS. It lies between two other extra-embryonic membranes, the AMNION and the CHORION. The allantois serves to store urinary wastes and mediate exchange of gas and nutrients for the developing embryo.
See also reference (FX) in Slovak
membrána chorioalantoická
See also reference (FX) in English
Chorioallantoic Membrane
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subject heading
openseadragon
Number of the records: 1
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