Term Name: conceptus
Synonyms: embryo plus adnexa
Definition: The embryo and its adnexa (appendages or adjunct parts) or associated membranes (i.e. the products of conception) The conceptus includes all structures that develop from the zygote, both embryonic and extraembryonic. It includes the embryo as well as the embryonic part of the placenta and its associated membranes - amnion, chorion (gestational sac), and yolk sac[WP].
Ontology: Cell Ontology [UBERON:0004716]

Relationships
has parts: embryonic cardiovascular system entire extraembryonic component morula
is a type of: anatomical structure