Chorion - Wikipedia The chorion is the outermost fetal membrane around the embryo in mammals, birds and reptiles (amniotes) It is also present around the embryo of other animals, like insects and molluscs In humans and other therian mammals, the chorion is one of the fetal membranes that exist during pregnancy between the developing fetus and mother
Difference Between Amnion and Chorion The chorion, on the other hand, is the outer membrane that surrounds the amnion, the embryo, and other membranes and entities in the womb It is considered as the support platform of the fetus and the amnion
Chorion - Definition, Explanation Function - Biology Dictionary The chorion is one of the membranes that surround the fetus while it is still being formed In mammals, the fetus lies in the amniotic sac, which is formed by the chorion and the amnion and separates the embryo from the mother’s endometrium
Chorion | Fetal Membrane, Placental Development Maternal . . . chorion, in reptiles, birds, and mammals, the outermost membrane around the embryo It develops from an outer fold on the surface of the yolk sac In insects the chorion is the outer shell of the insect egg
Chorion: Anatomy and function - Kenhub The chorion is the outermost of the four membranes surrounding the developing fetus, consisting of trophoblast and underlaying extraembryonic mesoderm It is continuous with the the lining of the uterine wall (endometrium) superficially and is in contact with the amnion deep to it
Chorion - Definition and Examples - Biology Online Dictionary The chorion is a membrane that develops around the developing fertilized egg It begins to develop during the early stages of pregnancy, particularly after the young embryo implants in the uterine lining (endometrium) and form the germ layers
Chorion | definition of chorion by . . . - Medical Dictionary chorion the superficial outer coat of the insect egg which is noncellular and secreted by the ovary around the ovum an embryonic membrane of AMNIOTES formed from an outer ectodermal layer (see ECTODERM and an inner mesodermal layer (see MESODERM) see AMNION