Which of the following are components of the definitive chorion?
The definitive chorion consists of three components: extraembryonic somatic mesoderm, cytotrophoblast, and syncytiotrophoblast. The chorion defines the chorionic cavity in which the embryoblast is suspended and is vital in the formation of the placenta.
Extraembryonic somatic mesoderm and epiblast
Extraembryonic somatic mesoderm and cytotrophoblast
Extraembryonic somatic mesoderm and syncytiotrophoblast
Extraembryonic somatic mesoderm, cytotrophoblast, and syncytiotrophoblast
General Embryology 1